CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of priority to U S. Provisional Patent

Application Serial No. 63/167,762 filed March 30, 2021, and U.S. Provisional Patent Application Serial No. 63/177,534 filed April 21, 2021, the disclosures of which are incorporated herein in their entirety by reference.

FIELD

[0002] The present disclosure provides a condensation polyamide composition suitable for extrusion in planer form, methods for making the compositions, and extruded planer sheets formed therefrom. The extruded planer sheets made from the disclosed compositions can be suitable for thermoforming as well as drape and oven molding into two- and three-dimensional shapes.

BACKGROUND

[0003] Thermoplastic condensation polyamide resins that are molded or extruded suffer from insufficient properties for various end uses such as automotive, electronics, chemical processing, and heat transfer applications. Various thermoplastic condensation polyamide resins that are molded or extruded have lower tensile strength, lower chemical resistance, lower stress cracking resistance, or higher melt viscosities (e.g., making extrusion difficult or impossible), than available HOPE, N11, N12, N612 and PVDF materials.

SUMMARY OF THE INVENTION

[0004] The present disclosure provides a composition including a condensation polyamide, wherein the condensation polyamide is at least 30 wt% of the composition, wherein the condensation polyamide is the predominant polyamide in the composition. The composition also includes from >10 wt% to <50 wt% of a maleated polyolefin, wherein the maleated polyolefin includes maleic anhydride grafted onto a polyolefin backbone, the maleated polyolefin having a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin. The composition is formable into a sheet.

[0005] The present disclosure provides a reacted product of the composition. The reacted product includes a polyamide-polyolefin copolymer formed from at least partial reaction of the condensation polyamide and the maleated polyolefin of the composition. The reacted product is formable into the sheet.

[0006] The present disclosure provides a composition, or a reacted product thereof, the composition including a condensation polyamide, wherein the condensation polyamide is at least 30 wt% of the composition, wherein the condensation polyamide is the predominant polyamide in the composition, wherein the condensation polyamide is polyamide-66/MPMD-I. The composition also includes from >10 wt% to <50 wt% of a maleated polyolefin, wherein the maleated polyolefin includes maleic anhydride grafted onto a polyolefin backbone, the maleated polyolefin having a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin wherein the composition or reacted product thereof is extrudable into a sheet.

[0007] The present disclosure provides a composition, or a reacted product thereof. The composition includes >40 to <50 wt.% polyamide-6,6, The composition includes >15 to <45 wt.% polyamide-66/MPMD-I. The composition also includes from >10 wt% to <50 wt% of a maleated polyolefin, wherein the maleated polyolefin includes maleic anhydride grafted onto a polyolefin backbone, the maleated polyolefin having a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin. The composition or reacted product thereof is extrudable into a sheet.

[0008] The present disclosure provides an article formed from the composition or the reacted product thereof. [0009] The present disclosure provides a method of making the composition, the reacted product thereof, or a combination thereof. The method includes combining the condensation polyamide and the maleated polyolefin to form the composition, the reacted product thereof, or a combination thereof

[0010] The present disclosure provides a method of extrusion of a polyamide resin. The method includes providing the composition, the reacted product thereof, or a combination thereof, to a feed zone of an extruder. The method includes maintaining extruder barrel conditions sufficiently to obtain a polyamide resin melt inside the extruder. The method includes producing extrudate from the extruder while optionally recovering vapor from the extruder via a vacuum draw.

[0011] There continues to be a need for an unreinforced or reinforced condensation polyamide resin composition that is suitable for making extruded planer sheets. Such extruded planer sheets of suitable dimensions and thicknesses may be thermoformed and/or drape-oven molded into 2-dimensional and 3-dimensional parts or articles of various shapes. The condensation polyamide resin composition should desirably provide good melt strength, sag resistance, crystallization behavior for the optimum processing window during sheet extrusion.

In general, nylon 66 is known not to have the adequate melt strength and/or crystallization characteristics required for sheet extrusion processes. The formulations according to the present disclosure can impart sufficient melt strength and crystallization behavior suitable in such sheet extrusion processes.

[0012] The composition of the present disclosure or the reacted product thereof can have increased or comparable melt strength compared to other polyamide compositions and other polymer compositions. The increased melt strength indicates increased resistance of the polymer melt to stretching, which can provide improved sag resistance during extrusion processes. The composition of the present disclosure or the reacted product thereof including a flame-resistant additive can also have increased or comparable melt strength as compared to other polyamide compositions and other compositions. The composition of the present disclosure or the reacted product thereof can have increased expulsion time during blow-molding compared to other polyamide compositions and/or other polymer compositions. An increased expulsion time indicates an increased time before the melted composition or melted reacted product thereof crystallizes and prevents proper part formation. The composition of the present disclosure or the reacted product thereof can be used to form articles such as sheets having increased or comparable impact resistance as compared to articles formed from other polyamide compositions and/or polymer compositions, such as formed from polycarbonate compositions. Articles such as sheets formed from the composition of the present disclosure or the reacted product thereof can be folded with less or no discoloration or whitening at the folded areas.

BRIEF DESCRIPTION OF THE FIGURES [0013] The drawings illustrate generally, by way of example, but not by way of limitation, various aspects of the present invention.

[0014] FIG. 1 illustrates a photographic representation of the impact resistance test summary for extruded sheet specimens according to the present disclosure.

[0015] FIG. 2 illustrates a photographic representation of the impact resistance test summary for extruded sheet specimens according to the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION [0016] Reference will now be made in detail to certain aspects of the disclosed subject matter. While the disclosed subject matter will be described in conjunction with the enumerated claims, it will be understood that the exemplified subject matter is not intended to limit the claims to the disclosed subject matter.

[0017] Throughout this document, values expressed in a range format should be interpreted in a flexible manner to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a range of “about 0.1% to about 5%” or “about 0.1% to 5%” should be interpreted to include not just about 0.1% to about 5%, but also the individual values (e.g., 1%, 2%, 3%, and 4%) and the sub-ranges (e.g., 0.1% to 0.5%, 1.1% to 2.2%, 3.3% to 4.4%) within the indicated range. The statement “about X to Y” has the same meaning as “about X to about Y,” unless indicated otherwise. Likewise, the statement “about X, Y, or about Z” has the same meaning as “about X, about Y, or about Z,” unless indicated otherwise.

[0018] In this document, the terms “a,” “an,” or “the” are used to include one or more than one unless the context clearly dictates otherwise. The term “or” is used to refer to a nonexclusive “or” unless otherwise indicated. The statement “at least one of A and B” or “at least one of A or B” has the same meaning as “A, B, or A and B.” In addition, it is to be understood that the phraseology or terminology employed herein, and not otherwise defined, is for the purpose of description only and not of limitation. Any use of section headings is intended to aid reading of the document and is not to be interpreted as limiting; information that is relevant to a section heading may occur within or outside of that particular section.

[0019] In the methods described herein, the acts can be carried out in any order without departing from the principles of the invention, except when a temporal or operational sequence is explicitly recited. Furthermore, specified acts can be carried out concurrently unless explicit claim language recites that they be carried out separately. For example, a claimed act of doing X and a claimed act of doing Y can be conducted simultaneously within a single operation, and the resulting process will fall within the literal scope of the claimed process.

[0020] The term “about” as used herein can allow for a degree of variability in a value or range, for example, within 10%, within 5%, or within 1% of a stated value or of a stated limit of a range, and includes the exact stated value or range.

[0021] The term “substantially” as used herein refers to a majority of, or mostly, as in at least about 50%, 60%, 70%, 80%, 90%, 95%, 96%, 97%, 98%, 99%, 99.5%, 99.9%, 99.99%, or at least about 99.999% or more, or 100%. The term “substantially free of’ as used herein can mean having none or having a trivial amount of, such that the amount of material present does not affect the material properties of the composition including the material, such that about 0 wt% to about 5 wt% of the composition is the material, or about 0 wt% to about 1 wt%, or about 5 wt% or less, or less than, equal to, or greater than about 4.5 wt%, 4, 3.5, 3, 2.5, 2, 1.5, 1, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.01, or about 0.001 wt% or less, or about 0 wt%.

[0022] As used herein, the term “polymer” refers to a molecule having at least one repeating unit and can include copolymers.

[0023] The term “PA6”, “N6” or “nylon 6”, as used herein, refers to a polymer synthesized by polycondensation of caprolactam. The polymer is also known as polyamide 6, PA6, or poly(caprolactam).

[0024] The term “N66” or “nylon 66”, as used herein, refers to a polymer synthesized by polycondensation of hexamethylenediamine (HMD) and adipic acid. The polymer is also known as polyamide 66 (or PA66), nylon 6,6, nylon 6-6, nylon 6/6 or nylon-6,6. [0025] The term “N12” or “nylon 12”, as used herein, refers to a polymer synthesized by polycondensation of co-aminolauric acid or ring-opening polymerization of laurolactam. The polymer is also known as polyamide 12 (or PA12), nylon 12, poly(laurolactam), poly(dodecano- 12-lactam), or poly(12-aminododecanoic acid lactam).

[0026] The term “N612” or “nylon 612”, as used herein, refers to a polymer synthesized by polycondensation of hexamethylenediamine (HMD) and a,w-dodecanedioic acid (or Cl 2 diacid). The polymer is also known as polyamide 612 (or PA612), PA 6/12, or nylon 6/12.

[0027] The term “nylon 66/6T”, as used herein, refers to a co-polymer obtained from

N66 and a polymer of N6-terephthalic acid (TP A).

[0028] As used herein, “PA610” or “nylon-6,10” is a semi-crystalline polyamide prepared from hexamethylenediamine (Ce diamine, abbreviated as HMD) and decanedioic acid (Cio diacid). It is commercially available from Arkema, BASF, and such.

[0029] As used herein, “PA66/DI” or “nylon-66/DI” or “PA66/MPMD-I” refers to a type of co-polyamide of polyhexamethyleneadipamide (nylon-6,6 or N66 or PA66) and “DI” which is a combination of 2-methyl-pentamethylenediamine (or “MPMD”) and isophthalic acid. MPMD is commercially available as INVISTA Dytek ^® A amine and industrially known as “D” in the abbreviated formulation labeling. Isophthalic acid is commercially available and industrially known as “I” in the abbreviated formulation labeling.

[0030] As used herein, “sheet” or “extruded planer sheet” refers to a broad and substantially flat or planer section of desired dimension. In some aspects, the sheet width can be in the range of 6-inch (~15 cm) to 10-ft (~3.1 m) and the sheet thickness range may be 0.3-5 mm.

Composition including a condensation polyamide and a maleated polyolefin.

[0031] The present invention provides a composition including a condensation polyamide. The condensation polyamide can be at least 30 wt% of the composition. The condensation polyamide can be the predominant polyamide in the composition. The composition includes a maleated polyolefin. The maleated polyolefin can be >10 wt% to <50 wt% of the composition, such as >15 wt% to <50 wt%, >15 wt% to <45 wt%, or less than or equal to 50 wt% but greater than or equal to 10 wt%, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 25,

30, 35, 40, 41, 42, 43, 44, 45, 46, 47, 48, or 49%. The maleated polyolefin can include maleic anhydride grafted onto a polyolefin backbone. The maleated polyolefin can have a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin. The composition can be formable into a sheet, such as via extrusion.

[0032] The condensation polyamide can be one or more polyamides that can be formed via condensation (e g., via reaction of an amine and carboxylic acid group to form an amide and release water). The condensation polyamide can include any suitable one or more condensation polyamides. The condensation polyamide can include nylon 66, nylon 66/6T, nylon 66/DI, or a combination thereof. The condensation polyamide can be nylon 66. The condensation polyamide can be nylon 66/DI. The condensation polyamide can be substantially free of polyamides (prior to being combined into the composition and combining with any other polyamides therein) other than one or more of nylon 66, nylon 66/6T, and nylon 66/DI. The condensation polyamide can be nylon 66, and the condensation polymer (prior to being combined into the composition) can be substantially free of polyamides other than nylon 66. The condensation polyamide can be nylon 66/DI, and the condensation polyamide (prior to being combined into the composition) can be substantially free of polyamides other than nylon 66/DI. The condensation polyamide can be the predominant polyamide in the composition, such that the condensation polyamide has a higher concentration in the composition than any other polyamide in the composition. The condensation polyamide can have any suitable relative viscosity (RV), such as determined via a 8.4 wt% solution in 90 wt% formic acid method (e.g., ASTM D789), such as equal to or greater than 35, 40, or 45, or such as equal to or less than 100, 90, or 80, or such as less than or equal to 100 but equal to or greater than 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 55, 60, 65, 70, 75, 80, 85, 90, or 95, or such as 30-80, 35-75, or 42-50, or such as 35-100, 40-90, or 45-80. The condensation polyamide can form any suitable proportion of the composition, such as at least 30 wt%, 40, or at least 50 wt%, or 30-99.9 wt%, 60-99.9 wt%, or >40 to <50 wt%, or less than or equal to 99.9 wt% but greater than or equal to 30 wt%, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 82, 84, 86, 88, 90, 92, 94, 95, 96, 97, 98, 99, or 99.5 wt%. [0033] The nylon 66/6T can include 0.1 mol% to 99.9 mol% PA66, or 50 mol% to 99 mol%, or 80 mol% to 99 mol% PA66, or greater than or equal to 0.1 mol%, 0.5, 1, 2, 4, 8, 10,

15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 92, 94, 96, 98, or 99 mol% PA66. The “6T” portion can include a mole ratio of “6” to “T” o equal to of greater than 1:100, 5:95, 10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20, 90:10, 95:5, or 100:1. The nylon 66/DI can include 0.1 mol% to 99.9 mol% PA66, or 50 mol% to 99 mol%, or 80 mol% to 99 mol% PA66, of less than 100: 1 but greater than or equal to 0.1 mol%, 0.5, 1, 2, 4, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 92, 94, 96, 98, or 99 mol% PA66. The “DI” portion can include a mole ratio of “D” to “I” of less than 100: 1 but greater than or equal to 1 : 100, 5 :95, 10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20, 90:10, 95:5, or 100:1.

[0034] In various aspects, the composition can be free of additional polyamides beyond what is included in the condensation polyamide. In other aspects, the composition further includes an additional polyamide, in addition to the condensation polyamide. The additional polyamide can include nylon 66, nylon 612, nylon 610, nylon 12, nylon 6, nylon 66/6T, nylon 66/DI, nylon 66/DI, nylon 66/D6, nylon 66 DT, nylon 66/610, nylon 66/612, nylon 11, nylon 46, nylon 69, nylon 1010, nylon 1212, nylon 6T/DT, nylon DT/DI, polyxylylene adipamide (PA- MXD6), a polyamide copolymer, an amorphous polyamide (e.g., nylon 6I/6T and/or a nylon formed from trimethylhexamethhylenediamine such as nylon TMDT (nylon 6-3-T)), or a combination thereof. The additional polyamide can form any suitable proportion of the composition, such as >0 to <85 wt%, or less than or equal to 85 wt% but greater than or equal to 0.1 wt%, 0.5, 1, 2, 4, 6, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, or 75 wt%. The additional polyamide can be nylon 6. The composition can be free of nylon 6 (e.g., the composition can have a concentration of nylon 6 of 0 wt% to <1 wt%). The additional polyamide can be a nylon-6, 6/MPMD-I copolymer.

[0035] The composition can optionally further include polycaproamide (N6), polyhexamethylene decanamide (N610), polyhexamethylene dodecanamide (N612), polyhexamethylene succmamide (N46), polyhexamethylene azelamide (N69), polydecamethylene sebacamide (N1010), polydodecamethylene dodecanamide (N1212), nylon 11 (Nil), polylaurolactam (N12), nylon 6T/DT, nylon DT/DI, syndiotactic polystyrene (SPS), styrene-maleic anhydride (SMA), imidized styrene-maleic anhydride (SMI), or combinations thereof. The level of one or more of these additional components can be up to 50% by weight of the total composition, such as less than or equal to 50 wt% but greater than or equal to 0.1 wt%, 0.5, 1, 2, 4, 6, 8, 10, 15, 20, 25, 30, 35, 40, or 45 wt%.

[0036] In various aspects, the condensation polyamide is chosen from nylon 66, nylon

66/6T, and a combination thereof, and the composition further includes a nylon-6, 6/MPMD-I copolymer. The condensation polyamide can be nylon 66, and the composition can further include a nylon-6, 6/MPMD-I copolymer. The condensation polyamide can be 30 wt% to 60 wt% of the composition, or less than or equal to 60 wt% but greater than or equal to 30 wt%, 35, 40, 45, 50, or 55 wt%. The nylon-6, 6/MPMD-I copolymer can be a random copolymer. The nylon-6, 6/MPMD-I copolymer can form any suitable proportion of the composition, such as >2 to <50 wt%, >25 to <35 wt%, >0.2 wt% to < 10 wt%, or less than or equal to 50 wt% but greater than or equal to 0.2 wt%, 0.4, 0.6, 0.8, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, or 48 wt%.

[0037] The maleated polyolefin includes a polyolefin or polyacrylate backbone having pendant maleic anhydride groups grafted thereto. The polyolefin component can optionally be an ionomer. The polyolefin can be any suitable polyolefin polymer or copolymer. The polyolefin can include EPDM, ethylene-octene, polyethylene, polypropylene, or a combination thereof. In various aspects, the maleated polyolefin is free of EPDM. The maleated polyolefin can have any suitable grafted maleic anhydride incorporation, such as a grafted maleic anhydride incorporation of less than 10 wt%, or of 0.01 to 10 wt%, based on total weight of the maleated polyolefin, such as >0.1 to <1.4 wt%, >0.15 to <1.25 wt%, or less than or equal to 1.25 wt% but equal to or greater than 0.1 wt%, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, or 1.3 wt%. The maleated polyolefin can have any suitable glass transition temperature (T _g ), such as >-70 °C to <0 °C, >-60 °C to <-20 °C, >-60 °C to <-30 °C, or less than or equal to 0 °C but greater than or equal to -70 °C, -65, -60, -55, -50, -45, -40, -35, -30, -25, -20, -15, -10, or -5 °C. The maleated polyolefin can form any suitable proportion of the composition, such as >10 wt% to <50 wt%,

>15 wt% to <50 wt%, or less than or equal to 50 wt% but greater than or equal to 10 wt%, 11 ,

12, 13, 14, 15, 16, 17, 18, 19, 20, 25, 30, 35, 40, 41, 42, 43, 44, 45, 46, 47, 48, or 49%.

[0038] The maleated polyolefin can be any suitable maleic anhydride-grafted polyolefin.

A variety of maleated polyolefins are commercially available. These may include, but are not limited to, AMPLIFY™ GR Functional Polymers commercially available from Dow Chemical Co. (Amplify™ GR 202, Amplify™ GR 208, Amplify™ GR 216, Amplify™ GR380), Exxelor™ Polymer Resins commercially available from ExxonMobil (Exxelor™ VA 1803, Exxelor™ YA 1840, Exxelor™ VA 1202, Exxelor™PO 1020, Exxelor™PO 1015), ENGAGE™ 8100 Polyolefin Elastomer commercially available from Dow Elastomer, Bondyram® 7103 Maleic Anhydride-Modified Polyolefin Elastomer commercially available from Ram-On Industries LP, and the like. Maleated polyolefins can be described commercially as impact modifiers. Table 1 lists non-limiting commercially available modified polyolefins. [0039] Table 1. Commercially available modified polyolefins.

[0040] In Table 1, the term “Modification Level (wt%) in Polyolefin” means the functionalized level in the polyolefin tested. For example, in the first row of Table 1, polypropylene with 0.2-0.5 wt% modification level means it is a modified polyolefin having 0.2- 0.5% grafted maleic anhydride content.

[0041] In various aspects, the composition can include glass fibers or other glass reinforcements, or the composition can be substantially free of glass fibers or other glass reinforcements. The composition can include >1 wt% to <50 wt% glass fibers or other reinforcing fibers, >10 wt% to <42 wt%, >10 wt% to <35 wt%, >15 wt% to <30 wt%, >0 wt% to <2 wt%, or less than or equal to 50 wt% but equal to or greater than 5 wt%, 10, 15, 20, 25, 30, 35, 40, or 45 wt%. Non-limiting examples of glass fiber (GF) may include Type-E glass fiber. Other non-limiting reinforcement additives may include basalt fibers, carbon fibers, Kevlar® fibers, glass beads, and combinations.

[0042] In various aspects, the condensation polyamide has an AEG of >65 milliequivalents per kg (meq/kg) and <130 meq/kg; or the maleated polyolefin, or domains thereof, ls/are uniformly distributed in the condensation polyamide or in the composition; or the condensation polyamide has an RY of at least 35; or the condensation polyamide is chosen from nylon 66, nylon 66/6T, nylon 66/DI, and a combination thereof; or a combination thereof.

[0043] The composition including the condensation polyamide and the maleated polyolefin, or the reacted product of the composition, can be a compounded composition including one or more other components. The one or more components other than the condensation polyamide, the maleated polyolefin, and reaction products thereof, can be any suitable one or more other components, such as including a modified polyphenylene ether, an impact modifier, a flame retardant, a chain extender, a heat stabilizer, a colorant additive, a filler, a conductive fiber, glass fibers, another polyamide other than the condensation polyamide, or a combination thereof. The one or more other components can include a chain extender including a dialcohol, a bis-epoxide, a polymer including epoxide functional groups, a polymer including anhydride functional groups, a bis-N-acyl bis-caprolactam, a diphenyl carbonate, a bisoxazoline, an oxazolinone, a diisocyanate, an organic phosphite, a bis-ketenimine, a dianhydride, a carbodiimide, a polymer including carbodiimide functionality, or a combination thereof. Examples of flame retardants can include Exolit ^® OP 1080P, Exolit ^® OP 1314, Exolit ^® OP 1400, and the like. Exolit ^® FR additives are commercially available from Clariant. Examples of colorants can include commercial products available in the thermoplastics industry, such as, Black MB Colorant (e.g., carbon black or Nigrosine black dye). Examples of other additives, such as heat stabilizers, chain extenders, cross linkers, and/or antioxidants may include copper or organic- based additives such as ZeMac™ amorphous copolymers, Irganox ^® B1171, Irganox ^® B1098, Bruggolen™ TP-H1802, Bruggolen™ Ml 251, and the like. For example, Irganox ^®

B1171 is a commercial polymer additive product of BASF that can be used as an antioxidant.

The ZeMac™ amorphous copolymers are commercially available from Vertellus™ (www.vertellus.com) and can be used as chain extenders.

[0044] The one or more other components can include a chain extender. The chain extender can be capable of reacting with the amine and/or acid terminal groups of the condensation polyamide and/or of the reaction product thereof with the maleated polyolefin, thereby connecting two polyamide chains. The chain extender can be any suitable chain extender, such as a dialcohol (e.g., ethylene glycol, propanediol, butanediol, hexanediol, or hydroqumone bis(hydroxyethyl)ether), a bis-epoxide (e.g., bisphenol A diglycidyl ether), polymers having epoxide functional groups (e.g., as pendant and/or terminal functional groups), polymers including anhydride functional groups, bis-N-acyl bis-caprolactams (e.g., isophthaloyl bis-caprolactam (IBS), adipoyl bis-caprolactam (ABC), or terephthaloyl bis-caprolactam (TBC)), diphenyl carbonates, bisoxazolines, oxazolinones, diisocyanates, organic phosphites (triphenyl phosphite, caprolactam phosphite), bis-ketenimines, or dianhydrides. The chain extender can be a polymer including anhydride functional groups, such as a maleic anhydride-polyolefin copolymer (e.g., an alternating copolymer of maleic anhydride and ethylene). For end-uses that require hydrolysis resistance, chain extenders that are known to improve hydrolysis resistance are preferred. The chain extender can be any suitable proportion of the composition or reacted product thereof, such as >0.05 to <5 wt% or >0.05 to <2 wt%, or less than or equal to 5 wt% but greater than or equal to 0.05 wt%, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4,

1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, or 4.8 wt%.

[0045] The maleated polyolefin or domains thereof can have any suitable distribution in the condensation polyamide (and in any additional polyamides present) or in the composition.

For example, the maleated polyolefin or domains thereof can have a uniform or homogeneous distribution in the condensation polyamide (and any additional polyamides present) or in the composition. The uniformity or homogeneity can be present on a molecular level, such that the molecules of the maleated polyolefin are homogeneously distributed therein. The maleated polyolefin can forms domains within the condensation polymer (and any other polyamides present) or within the composition; in some aspects, the maleated polyolefin can be at least partially immiscible with the condensation polymer. For example, the condensation polymer (and any other polyamides present), or all polymeric components other than the maleated polyolefin, or the remainder of the composition, can form a continuous phase, and the maleated polyolefin can form a discontinuous phase (domains) therein, such that the maleated polyolefin primarily resides in islands in a condensation polyamide sea. In various aspects, articles described herein, formed from the composition that includes the condensation polyamide and the maleated polyolefin, can include a uniform or homogeneous distribution of the maleated polyolefin and/or domains of the maleated polyolefin.

[0046] The composition including the condensation polyamide and the maleated polyolefin can be formable into a sheet. The composition can be extrudable into a sheet. The sheet can be a film. The sheet can have any suitable thickness, such as a thickness of 0.01 mm to 10 mm, or 0.1 mm to 10 mm, or 0.2 mm to 6 mm, or less than or equal to 10 mm but greater than or equal to 0.01 mm, 0.02, 0.04, 0.06, 0.08, 0.1, 0.15, 0.2, 0.4, 0.6, 0.8, 1, 1.5, 2, 2.5, 3, 3.5, 4,

4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, or 9.5 mm. The sheet can have any suitable width-to- thickness ratio, such as at least 10, or at least 20, or >10 to <40,000, or >20 to <20,000, or greater than or equal to 10, 20, 40, 60, 80, 100, 150, 200, 250, 500, 750, 1,000, 1,500, 2,000, 2,500, 5,000, 10,000, 15,000, 20,000, 25,000, 30,000, 35,000, or 40,000. The sheet can exhibit an impact resistance (e.g., as measured using a heavy duty impact tested such as BYK-Gardner USA Model 1120 or 5545) in kJ/m ² that is within 10% of an impact resistance of a polycarbonate sheet of like thickness under like impact resistance testing conditions, such as within 1%, 2, 3, 4, 5, 6, 7, 8, 9, or within 10%.

[0047] The composition can have any suitable maximum expulsion time, wherein the maximum expulsion time is the time until crystallization of the composition prevents from a proper blow-mold forming of a part, such as a maximum expulsion time of >4 seconds, >5, >6, >7, >8, >9, >10, or less than 15 seconds but greater than 4 seconds, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 seconds. The expulsion time can be the time between the moment the melt exits the accumulator head though the gate until the time air is blown to shape the part.

[0048] The composition including the condensation polyamide and maleated polyolefin can have any suitable melt strength. For example, the composition can exhibit a melt strength of >0.3 to <1.0 N in a Rheotens test conducted at 270 °C to 290 °C, a moisture level of 0.03-0.1%, and an extrusion speed of 300-700 mm/s, or a melt strength of >0.8 to <1.0 N, or a melt strength of less than or equal to 1 N and greater than or equal to 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, or 0.95 N.

Reacted product of the composition including a condensation polyamide and a maleated polyolefin.

[0049] The present invention provides a reacted product that is a reaction product of the composition including the condensation polyamide and the maleated polyolefin. The reacted product of the composition can include one or more products formed via reaction of the condensation polyamide and the maleated polyolefin, such as a polyamide-polyolefin copolymer formed from at least partial reaction of the condensation polyamide and the maleated polyolefin. [0050] The reacted product can include the composition including the condensation polyamide and the maleated polyolefin wherein any suitable proportion of the condensation polyamide has reacted with the maleated polyolefin. For example, the reacted product can include the polyamide-polyolefin copolymer in a concentration range of >50 to <7500 ppmw, >100 to <4900 ppmw, >225 to <3750 ppmw, or less than or equal to 7500 ppmw but greater than or equal to 50, 100, 250, 500, 750, 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 6,000, 7,000, or 8,000 ppmw. In some aspects, the amount of polyamide-polyolefin copolymer can be calculated by multiplying the concentration of the maleated polyolefin with the modification level of the maleated polyolefin. For example, for a reacted product made from 80:20 (wt:wt) polyamide: modified polyolefin having 0.5 wt % grafted (e g.: maleated) modification, the total reacted polyamide-polyolefin modification functionality in the sample (assuming all grafted maleic anhydride reacts, which may not occur) can be calculated as (0.20)*(0.005)*10 ⁶ = 1000 ppmw.

[0051] The reacted product can be formable into a sheet. The reacted product can be extrudable into a sheet. The sheet can be a film. The sheet can have any suitable thickness, such as a thickness of 0.01 mm to 10 mm, or 0.1 mm to 10 mm, or 0.2 mm to 6 mm, or less than or equal to 10 mm but greater than or equal to 0.01 mm, 0.02, 0.04, 0.06, 0.08, 0.1, 0.15, 0.2, 0.4, 0.6, 0.8, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, or 9.5 mm. The sheet can have any suitable width-to-thickness ratio, such as at least 10, or at least 20, or >10 to <40,000, or >20 to <20,000, or greater than or equal to 10, 20, 40, 60, 80, 100, 150, 200, 250, 500, 750, 1,000, 1,500, 2,000, 2,500, 5,000, 10,000, 15,000, 20,000, 25,000, 30,000, 35,000, or 40,000.

The sheet can exhibit an impact resistance (e.g., as measured using a heavy duty impact tested such as BYK-Gardner USA Model 1120 or 5545) in kJ/m ² that is within 10% of an impact resistance of a polycarbonate sheet of like thickness under like impact resistance testing conditions, such as within 1%, 2, 3, 4, 5, 6, 7, 8, 9, or within 10%. The reacted product can include the same components in the same proportions as the composition including the condensation polyamide and the maleated polyolefin, with the exception that the condensation polyamide and the maleated polyolefin are at least partially reacted.

[0052] Without limiting the scope of the disclosure with a recitation of a theoretical mechanism, the generalized chemical reaction schematically represented in Scheme 1 is one approach to understand the interaction of a maleated olefin copolymer with a polyamide.

[0053] Scheme 1. Generalized chemical reaction.

[0054] Structure D in Scheme 1 represents the condensation polyamide. Structure A in

Scheme 1 represents the polyolefin, and Structure C represents the maleated polyolefin (a maleic anhydride-grafted polyolefin). The polyolefin can be any suitable polyolefin, as described herein, and is not limited to the one shown as Structure A. For example, Table 1 lists some of these polyolefins. The terms “degree of maleation” or “modification level”, as used interchangeably herein, means the extent of which the olefin copolymer (structure A) has been reacted with maleic anhydride (structure B). Structure E represents a reaction product formed from reaction of the condensation polyamide and the maleated polyolefin.

[0055] The maleated polyolefin, domains thereof, or reaction products thereof with the condensation polyamide, can have any suitable distribution in the condensation polyamide (and in any additional polyamides present) or in the composition. For example, the maleated polyolefin, reaction product thereof, or domains thereof, can have a uniform or homogeneous distribution in the condensation polyamide (and any additional polyamides present) or in the composition. The uniformity or homogeneity can be present on a molecular level, such that the molecules of the maleated polyolefin or reaction product thereof are homogeneously distributed therein. The maleated polyolefin or reaction product thereof can forms domains within the condensation polymer (and any other polyamides present) or within the composition; in some aspects, the maleated polyolefin or reaction product thereof can be at least partially immiscible with the condensation polymer. For example, the condensation polymer (and any other polyamides present), or all polymeric components other than the maleated polyolefin, or the remainder of the composition, can form a continuous phase, and the maleated polyolefin or a reaction product thereof can form a discontinuous phase (domains) therein, such that the maleated polyolefin or reaction product thereof primarily resides in islands in a condensation polyamide sea. In various aspects, articles described herein, formed from the composition that includes the condensation polyamide and the maleated polyolefin, the reacted product thereof, or a combination thereof, can include a uniform or homogeneous distribution of the maleated polyolefin, reaction products thereof, and/or domains of the maleated polyolefin or reaction products thereof.

[0056] The reacted product can have any suitable melt strength. For example, the reacted product can exhibit a melt strength of >0.3 to <1.0 N in a Rheotens test conducted at 270 °C to 290 °C, a moisture level of 0.03-0.1%, and an extrusion speed of 300-700 mm/s, or a melt strength of >0.8 to <1.0 N, or a melt strength of less than or equal to 1 N and greater than or equal to 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, or 0.95 N.

[0057] The reacted product can have any suitable maximum expulsion time, wherein the maximum expulsion time is the time until crystallization of the composition prevents from a proper blow-mold forming of a part, such as a maximum expulsion time of >4 seconds, >5, >6, >7, >8, >9, >10, or less than 15 seconds but greater than 4 seconds, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 seconds.

Article formed from the composition or a reacted product thereof.

[0058] The present disclosure provides an article formed from the composition including the condensation polyamide and the maleated polyolefin, from the reacted product of the composition, or a combination thereof. The article can be produced using any suitable method, such as using blow molding (pressure and suction), extrusion, compression molding, thermoformmg, injection molding, or other industrial processes. The article can be produced via methods including plug-assist molding, positive and negative vacuum-assisted molding, drape molding, or oven molding processes.

[0059] In various aspects, the article can be an extruded sheet. The article can be a folded extruded sheet (e.g., with little or no discoloration, cracking, crazing, and/or whitening at the fold), or an unfolded extruded sheet. The sheet can be a film. The sheet can have any suitable thickness, such as a thickness of 0.01 mm to 10 mm, or 0.1 mm to 10 mm, or 0.2 mm to 6 mm, or less than or equal to 10 mm but greater than or equal to 0.01 mm, 0.02, 0.04, 0.06,

0.08, 0.1, 0.15, 0.2, 0.4, 0.6, 0.8, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, or 9.5 mm. The sheet can have any suitable width-to- thickness ratio, such as at least 10, or at least 20, or >10 to <40,000, or >20 to <20,000, or greater than or equal to 10, 20, 40, 60, 80, 100, 150, 200, 250, 500, 750, 1,000, 1,500, 2,000, 2,500, 5,000, 10,000, 15,000, 20,000, 25,000, 30,000,

35,000, or 40,000. The sheet can exhibit an impact resistance (e.g., as measured using a heavy duty impact tested such as BYK-Gardner USA Model 1120 or 5545) in kJ/m ² that is within 10% of an impact resistance of a polycarbonate sheet of like thickness under like impact resistance testing conditions, such as within 1%, 2, 3, 4, 5, 6, 7, 8, 9, or within 10%.

[0060] The article can be any suitable article. The article can include a film, a mat, a liner, a flooring, a construction material, a pad, a shutter, a panel, a belt, a slide, an enclosure, a vehicle component, an architectural component, or a combination thereof. The article can include a slip sheet, a die cutting mat, a silo liner, a die cutting mat, a truck bed liner, flooring (e.g., for residential, commercial, and/or transportation end uses), a construction material (e g., roofing shingles, roofing panels, siding shingles, roofing shingles and underlayments for any of the foregoing), a ground pad (e.g., pads for rotating equipment and structures), a construction envelope system (e.g., residential or commercial construction envelope systems), a storm- resistant shutter (e.g., hurricane and tornado shutters), a hail-resistant panel, a geo-textile (e.g., pond liner), a conveying system component (e.g., a belt or slide), an electronic equipment enclosure, or a combination thereof.

Method of making the composition or a reacted product thereof.

[0061] The present disclosure provides a method of making the composition including the condensation polyamide and the maleated polyolefin, of making the reacted product of the composition, or a combination thereof. The method includes combining the condensation polyamide and the maleated polyolefin to form the composition, the reacted product thereof, or a combination thereof.

[0062] In various aspects, the method can include combining the condensation polyamide and the maleated polyolefin (e.g., and allowing the two to at least partially react to form a reacted product of the composition) before adding a chain extender thereto. In other aspects, the method of making the composition including the condensation polyamide and the maleated polyolefin or the reacted product thereof, includes combining the condensation polyamide, the maleated polyolein, and the chain extender at once without allowing any extra time for the condensation polyamide and the maleated polyolefin to react. In other aspects, the composition including the condensation polyamide and the maleated polyolefin, or the reacted product thereof, is substantially free of chain extender.

[0063] The method can include providing to a first compounder extruder zone a feed including the condensation polyamide and the maleated polyolefin. The method can include maintaining the first compounder extruder zone conditions sufficient to obtain a first compounded polyamide melt inside the first compounder extruder zone. The method can include introducing a chain extender to the first compounded polyamide melt in a second compounder extruder zone. The method can also include maintaining the second compounder extruder zone conditions sufficient to obtain a second compounded polyamide melt inside the second compounder extruder zone, wherein the second compounded polyamide melt is the composition including the condensation polyamide and the maleated polyolefin or the combination thereof. The second compounder extruder zone is downstream of the first compounder extruder zone and can be any suitable distance from the first compounder extruder zone; the chain extender can be added at any suitable location along the length of the screw extruder barrel. The temperature of the compounded polyamide melts can be any suitable temperature, such as 240 to 320 °C, 240 to 300 °C, 240 to 265 °C, or r less than or equal to 320 °C and greater than or equal to 240 °C, 250, 260, 270, 280, 290, 300, or 310 °C.

[0064] The first compounder extruder zone can be substantially free of the chain extender, and/or of any chain extender. The chain extender can be >0.05 to <5 wt% of the second compounded polyamide melt. The method can further include producing an article from the second compounded polyamide melt; for example, the method can include producing extrudate from the second compounded polyamide melt or producing a molded article from the second compounded polyamide melt.

[0065] An extruder used to make the composition including the condensation polyamide and the maleated polyolefin or the reacted product thereof, can be a screw extruder (e g., a single screw extruder, a vented twin-screw extruder, or an unvented twin-screw extruder). A barrel of the screw extruder can include the first compounder extruder zone and the second compounder extruder zone. Providing the feed to the first compounder extrusion zone can include providing the feed to a feed inlet of the barrel. The screw extruder can have a suitable diameter, such as a diameter of 10-30 mm, such as 18-26 mm, such as 10 mm, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 24, 26, 28, or 30 mm. The L/D ratio of the extruder can be any suitable ratio, such as 30-70, or 40-56.

[0066] In various aspects, the chain extender can be introduced to the second compounder extruder zone in the barrel a suitable distance away from the feed inlet. For example, the chain extender can be introduced to the second compounder extruder zone at least 1/4 of the length of the barrel from the feed inlet of the barrel. The chain extender can be introduced to the second compounder extruder zone at least 1/2 of the length of the barrel from the feed inlet of the barrel. The chain extender can be introduced to the second compounder extruder zone at least 3/4 of the length of the barrel from the feed inlet of the barrel. The chain extender can be introduced to the second compounder extruder zone sufficiently far from an outlet of the barrel to provide mixing of the chain extender with the first compounded polyamide melt to form the second compounded polyamide melt, and equal to or greater than 1/4 of the length of the barrel from the feed inlet of the barrel, or 1/2, 3/4, or more. The chain extender can be introduced to the second compounder extruder zone sufficiently far from an outlet of the barrel to provide mixing of the chain extender with the first compounded polyamide melt to form the second compounded polyamide melt, and equal to or greater than 20% of the length of the barrel from the feed inlet of the barrel, or 30%, 40, 50, 60, 70, 80, 90, or 95% or more of the length of the barrel from the feed inlet of the barrel.

[0067] In various aspects, the introducing of the chain extender to the first compounded polyamide melt in the second compounder extruder zone can include introducing the chain extender to the first compounded polyamide melt after a certain weight percentage of the maleated polyolefin has incorporated into the condensation polyamide or into the composition. Incorporation into the condensation polyamide or into the composition can include homogeneous blending of the chain extender with the condensation polyamide or the composition (e.g., on a molecular level, or of domains of the maleated polyolefin or a reaction product thereof), formation of a reaction product of the maleated polyolefin (e g., with the condensation polyamide), formation of domains of the maleated polyolefin or a reaction product thereof in the condensation polyamide or the composition, or a combination thereof. The introducing of the chain extender to the first compounded polyamide melt in the second compounder extruder zone can include introducing the chain extender to the first compounded polyamide melt after at least 50 wt% of the maleated polyolefin fed has incorporated into the condensation polyamide, or greater than or equal to 50%, 60%, 70%, 80%, 90%, greater than or equal to 95%, or after about 100% of the maleated polyolefin has incorporated into the condensation polyamide.

[0068] The present disclosure provides a method of extrusion of a polyamide resin. The method can include providing the composition including the condensation polyamide and the maleated polyolefin, the reacted product thereof, or a combination thereof, to a feed zone of an extruder. The method can include maintaining extruder barrel conditions sufficiently to obtain a polyamide resin melt inside the extruder. The method can also include producing extrudate from the extruder while optionally recovering vapor from the extruder via a vacuum draw.

[0069] Without undue experimentation but with such references as “Extrusion, The

Definitive Processing Guide and Handbook”; “Handbook of Molded Part Shrinkage and Warpage”; “Specialized Molding Techniques”; “Rotational Molding Technology”; and “Handbook of Mold, Tool and Die Repair Welding”, all published by Plastics Design Library (elsevier.com website), the skilled person can make suitable articles of any conceivable shape and appearance using the composition and/or reacted composition of the present disclosure, such as from the second compounded polyamide melt. Polyamide 66 sheets have been formed from unformulated polyamide 66 via a casting process with post-processmg by machining to produce the final desired shape or part. In contrast, this disclosure details a compounded polyamide that can be processed via extrusion processing wherein the produced nylon sheet can be engineered for desired properties during the extrusion process via independent temperature and speed- controlled rollers and nips and the formulation is engineered to allow for new post-processing methods, such as thermoformmg and compression molding.

[0070] The industrial applicability of the extruded planer sheets, prepared using the disclosed polyamide compositions, can be realized in the process of making thermoformed articles as well as 2- and 3 -dimensional shaped articles formed by using drape and oven molding techniques. For example, drape and oven formed plastic articles are described at Emco Industrial Plastics (www.emcoplastics.com). Other non-limiting industrial applications may include making slip sheets for shipping/storage/transportation industry, die cutting pads, internal and external enclosures and housings (e g., telecommunications equipment, base structures), roofing panels and underlayers, construction, building or home envelope protection applications requiring good impact resistance (e.g., severe hail protection) such as hurricane and tornado protection shutters, geo-textiles (e.g., pond liners), conveying systems (e.g., belts and slides), ballistics protection, energy dampening from projectiles, sound dampening partitions or walls, and many others.

[0071] In another industrial application, 3-D honeycomb sandwiched structures may be formed using the suitable thickness planer sheets extruded from the disclosed polyamide compositions. For example, see Econcore thermoplastic honeycomb core technology (www.econcore.com/en/technology/thermhex) for making honeycomb sandwiched structures from such planer sheets. These thermoplastic honeycomb sandwiched structures can find applications in a variety of industries for their light-weight, durability, and impact resistance properties.

[0072] The disclosed compositions or reacted products thereof according to the present application are suitable for methods of forming articles including blow molding (pressure and suction), extrusion, compression molding, thermoforming, injection molding, and other such industrial processes.

Examples

[0073] Various aspects of the present invention can be better understood by reference to the following Examples which are offered by way of illustration. The present invention is not limited to the Examples given herein.

General procedure for producing compounded material.

[0074] A twin-screw vented extruder having a 22 -mm diameter co-rotatmg screw with an

L/D ratio of 48 is used for compounding. The unit has one main feeder and three side feeders. A feed rate of 1 kg/hr is used. The twin-screw co-rotating/turning at 1000 RPM is sufficient to provide high shear for effective compounding. The total compounder throughput is 15 kg/hr. [0075] The compounding unit has one atmospheric port and two vacuum ports. A knock out pot is provided in this operation. The rotating twin screws impart forward momentum to the heated mass inside the barrel. The barrel is heated along its length to melt the polymer. The compounding temperature (e g., twin screw extruder set point) is 240-310 °C, or 245-300 °C, or 250-290 °C, typically 250-275 °C.

[0076] The polymer, fillers, and additives (as described below) are continuously fed into the first barrel section of the twin screw using a metering feeder. The products are conveyed along the screw and are melted and mixed by kneading elements in the plastification section of the barrel. The polymer then travels along to a side port where fillers (as described below, such as glass fiber) are added. The polymer then travels on to degassing zones and from there to a pressure build zone where it then exits the die via an at least 3-mm hole as a lace. The cast lace is fed into a water bath to cool and to enable it to be cut into chips via a pelletizer. The unit is able to withstand at least 70 bar die pressure. A die with a minimum of four holes, each at least 3 mm diameter, is used for pelletizing.

[0077] The compounded pellet having a diameter of 3 mm and a length of 3-5 mm is produced using the above equipment. The moisture content of the pelletized material is < 0.2 wt.%.

Sheet Extrusion of a polyamide resin

[0078] A polyamide resin including the composition that includes the condensation polyamide and the maleated polyolefin, the reacted product thereof, the compounded polyamide composition, or a combination thereof, is provided to sheet extrusion equipment.

Materials used in Examples.

[0079] Feedstock PA66 polyamide, as used herein, is a commercially available INYISTA nylon 66 (or N66) grade under the Tradename INVISTA™ U4800 polyamide resin. The PA66 has an RV range of 20 to 240, for example, 42-50.

[0080] As used herein, “High- AEG polyamide 66” or “High AEGN66” is commercially available from INVISTA. High- AEG polyamide 66 is characterized by its RV range of 30-80, for example 35-75 RV, for example, 35-70 RV, and AEG of >65 milliequivalents per kg (meq/kg) and <130 meq/kg of the polyamide resin, for example >70 meq/kg and <125 meq/kg, >75 meq/kg and <125 meq/kg, >80 meq/kg and <125 meq/kg, >90 meq/kg and <120 meq/kg of the polyamide resin.

[0081] As used herein, “Amplify ^® GR216” is a maleic anhydride grafted polyolefin and is commercially available from Dow Chemical.

[0082] ZeMac™ E60 is a chain extender that is a copolymer of maleic anhydride and ethylene and is commercially available from Vertellus™. [0083] The term, “PA66/DI”, used in the present disclosure refers to a type of co polyamide formed by combining N66 salt solution with DI salt solution, where “D” is an abbreviation for 2-methyl- 1,5-pentamethylene diamine (also known as MPMD), and “I” is an abbreviation for isophthalic acid. The formulation “PA66/DI” used in the examples of the present disclosure has an RV of 45, and a composition of 92:8 PA66:DI (wt/wt), with the “DI” part being about 40:60 D:I (wt/wt).

[0084] Stabaxol ^® PI 00 is a type of hydrolysis stabilizer commercially available from

Lanxess.

Test methods used in the examples

[0085] ASTM D789: Relative viscosity (RV) measurement method — Relative viscosity is the ratio of the viscosity of the polymer solution to the viscosity of the solvent used. For polyamides, RV is measured as an 8.4 wt% solution in 90 wt% formic acid, at room temperature and pressure, unless otherwise indicated. The solvent used is 90 wt% formic acid.

[0086] The term “AEG” is an abbreviation for amine end groups present in the polyamide resin and measured in moles per million grams (mpmg) or milliequivalents per kg (meq/kg). AEG is determined by titration of polymer solution in solvent such as methanol/phenol.

[0087] Flammability testing is established by performing a test functionally equivalent to the UL 94 Standard.

[0088] Impact resistance is tested using Heavy Duty Impact Tester (for example: BYK-

Gardner USA; www.byk Model No. 1120 or 5545). This is a routine commercial method for evaluating the impact strength or toughness of plastics, resins, fiberglass, sheet metals, plywood, and the like. The test specimens include 0.5-3.0 mm thickness extruded sheets that are prepared using the disclosed compositions, 2.0 mm thick polycarbonate (safety glass) material, and 0.7-2.5 mm thickness polypropylene sheet samples.

[0089] An improvement in melt strength is evidenced by an increase in the R* value which is defined as the ratio of the low shear rate viscosity at 1 sec. ¹ of the composition to the high shear rate viscosity at 100 sec. ¹ , at a predetermined optimum processing temperature: R* = (viscosity at 1 sec. (viscosity at 100 sec. ¹ ). The concept of melt viscosity and R* value is further discussed in U.S. Pat. No. 5,576,387 (assigned to Sabic Innovative Plastics) and Abolins et al. U.S. Pat. No. 4,900,786.

[0090] Another way to determine the melt strength for polymers is by using Rheotens test method. In this method, a vertical strand of a polymer melt is drawn at a constant extension rate. The draw force (usually measured in centi Newtons (cN), or Newtons (N)) needed to elongate the strand is measured. Such Rheotens test device is commercially available from GOTTFERT (www.goettfert.com) for determining various rheological properties of plastics and rubbers, for example, melt strength, melt elasticity, tensile strength measurements, and the like. The melt strand take away speeds (or extension rates) during the Rheotens measurement can range between 0 to 1200 mm/sec. The polymer melt strength is generally described in centi Newtons (cN) as determined using a Rheotens device, for example a Goettfert Rheotens tester, at a specimen-dependent particular temperature and at a certain mm/sec of take away speed.

Examples KA1-D2). Unreinforced polyamide resins suitable for sheet extrusion.

[0091] Table 2 lists suitable compositional ranges of several unreinforced polyamide samples that are compounded using the general procedure detailed above.

[0092] Table 2. Samples A1 - D2.

Examples 2(E1-H2k Reinforced polyamide resins suitable for sheet extrusion.

[0093] Table 3 lists suitable compositional ranges of several reinforced polyamide samples that are compounded using the general procedure detailed above. [0094] Table 3. Samples El -H2.

Examples 3(1 - ST Polyamide resins suitable for sheet extrusion.

[0095] Table 4 lists various polyamide samples that are compounded using the general procedure detailed above.

[0096] Table 4. Samples I - U.

[0097] In the formulations of Tables 2-4, the FR additive is Exolit ^® OP1400. In the formulations of Tables 2-4, the glass fiber is HP3610, available from PPG industries. The colorant additive is added at the molding step for the formulations of Tables 2-4. The colorant in Tables 2-4 is generic carbon black masterbatch having an average particle size of 19 nm. The “other additives” package of Tables 2-4 includes heat stabilizers (Irganox ^® 1098 and Irganox ^®

B1171), Amenchem brand copper-based heat stabilizer, and Stabaxol ^® PI 00 chain extender. [0098] The compounding for Tables 2-4 compositions is performed using a conventional screw type extruder and at 240-310 °C, or 245-300 °C, or 250-290 °C, typically 250-275 °C. The above-compounded polyamide specimens in Tables 2-4 are obtained as cylindrical extruded pellets having dimensions of 2-4 mm diameter (typically 3 mm) and 3-5 mm length (typically 4 mm).

Example 4 Sheet extrusion of compounded Sample L

[0099] The formulation “L”, as described in Table 4, is fed to a sheet extrusion processing step for preparing 1 -meter wide planer extruded sheets of thicknesses between 0.5 mm and 5 mm. Facile sheet extrusion processing is observed for formulation “L”. Processing conditions include temperatures of 270-290 °C, typically 280 °C.

[0100] For the unreinforced formulation “L”, the melt flow rate (MFR) is determined to be about 3.1 g/10 mm at 290 °C, melting point of about 255 °C and density of about 1.04 g/cm ³ at room temperature.

[0101] The melt strength of formulation “L” is determined using a Rheotens test method.

The melt strength is measured to be in the 0.3-1.0 Newton range (typically 0.7 N) at 270-290 °C (typically 280 °C) test temperature for polymer samples having 0.03-0.1 wt% moisture (typically 0.06 wt%) and at 300-700 mm/s extrusion rate (typically 500 mm/s) or strand take away speed. [0102] Evaluation of the maximum expulsion time before the material crystallizes is one method to determine the relative crystallization rate and processing window for thermoplastic compositions. A commercial blow-mold device is used: an ASPI series Parison Suction Machine (https://www.st-blowmoulding.com/products/parison-suction-as pi-series). Expulsion time is the time between the moment the melt exits the accumulator head though the gate until the time air is blown from the parison to shape the part. The maximum expulsion time of the parison is measured, i.e., the time needed to pass the test parison through the mold, until the material crystallization prevents proper formation of the part. For comparison, two additional commercially available materials, neat PA612 and glass-fiber reinforced PA66 with 25 wt% glass fibers, are evaluated along with the formulation “L” of Table 4. It is observed that the maximum expulsion time for glass-reinforced PA66 is short at 3-5 seconds versus 5-7 seconds for PA612 and 8 seconds for formulation “L”. The higher range for maximum expulsion time means the time before the material begins to solidify is increased. It is observed that the processing window for formulation “L” is favorable when compared to those for PA612 or glass- reinforced PA66 materials as tested.

[0103] It is further observed that the prepared sheets can be easily folded without observing any discoloration or whitening at the fold region.

Example 5 Impact resistance testing of extruded sheets made in Example 4.

[0104] Several test specimens are prepared using the extruded sheets in Example 4. The impact resistance testing is performed using a Heavy Duty Impact Tester (BYK-Gardner USA; mw.byk.com; Model No. 1120). The impact tester drop energy ranges between 20 inch- lbs and 160 inch- lbs.

[0105] FIG. 1 illustrates a photographic summary of the impact test results for extruded sheets of varying thicknesses, namely, 0.8 mm, 1.7 mm, 1.8 mm and 2.1 mm. For comparison, the impact test results for a 2.0 mm polycarbonate (e.g., safety glass) specimen are shown in the bottom- right corner of FIG. 1. It is observed that the impact resistance of 2.1 mm polyamide extruded sheet specimen is equivalent or better than that of the 2.0 mm polycarbonate specimen. [0106] FIG. 2 illustrates a photographic summary of the impact test results for extruded sheets of Example 4 having 3 mm- thickness (labeled “Nylon Formulation”) along with that measured for 2.5 mm- thick polypropylene sheet. The impact tester drop energy values in mch- lbs are shown for these individual test specimens. Surprisingly, the tested extruded sheets of Example 4 do not fracture at 160 inch-lbs drop energy, while the polypropylene test specimen fracture at 160 inch-lbs drop energy.

Example 6 Enclosures made from extruded sheets of compounded Samples O - S of Table 4 [0107] The extruded planer sheets having about 1.5-3 mm thickness, prepared from compounded Samples O - S of Table 4, are thermoformed and molded into a three-dimensional enclosure shaped article. The molded article can be installed for external use to house telecommunication radio antenna equipment. The FR additive provides sufficient fire resistance at UL-94 Vertical burn fire rating of V-0 at 1.5 mm. The UV resistance is such that the structure retains 75% of mechanical properties upon UV exposure from the sun for an exposure period of six (6) months. The glass fiber reinforcement at 20 wt.% yields >95 MPa tensile strength with all additives incorporated. The external enclosure has sufficient impact resistance and toughness to withstand 150 MPH wind speed, rain, hail, and other exterior impacts or stresses.

[0108] The composition is readily molded into a variety of enclosure shapes including a square box, rectangular box, cylindrical, oval, polygonal, and the like. In one aspect, the extruded planer sheet is drape-molded into a cylindrical shaped article. In another aspect, the extruded planer shape is oven-molded into a hexagonal shaped article.

Example 7 Sheet extrusion impact testing and enclosures of Samples.

[0109] Samples Al, A2, Bl, B2, Cl, C2, Dl, D2, El, E2, FI, F2, HI, H2, 1, J, K, L, M,

N, O, P, Q, R, S, T, and U are sheet extruded according to Example 4, impact tested according to Example 5, and the sheets were formed into enclosures according to Example 6.

[0110] Facile sheet extrusion processing is observed for all samples. The samples that include maleic anhydride-grafted polyolefin generally have increased melt strength compared to samples that do not include maleic anhydride-grafted polyolefin. The samples that include high AEG polyamide generally have increased melt strength compared to samples that do not include high AEG polyamide, with the samples that include both high AEG polyamide and maleic anhydride-grafted polyolefin having greater melt strength than samples that include the high AEG polyamide and do not include the maleic anhydride-grafted polyolefin or samples that include the maleic anhydride-grafted polyolefin but do not include the high AEG polyamide.

The samples that include PA66/DI generally have increased melt strength compared to samples that do not include PA66/DI. The results provide evidence that maleic anhydride-grafted polyolefin, high AEG polyamide provide, and/or PA66/DI increase resistance to stretching and improve sag resistance during extrusion.

[0111] The maximum expulsion time is evaluated according to Example 4. All of the samples have a processing window that is favorable when compared to those for two additional commercially available materials, neat PA612 and glass-fiber reinforced PA66 with 25 wt% glass fibers. The samples that include maleic anhydride-grafted polyolefin generally have a greater maximum expulsion time than samples that do not include maleic anhydride-grafted polyolefin. The samples that include high AEG polyamide generally have a greater maximum expulsion time than samples that do not include high AEG polyamide, with the samples that include both high AEG polyamide and maleic anhydride-grafted polyolefin having a greater maximum expulsion time than samples that include the high AEG polyamide and do not include the maleic anhydride-grafted polyolefin or samples that include the maleic anhydride-grafted polyolefin but do not include the high AEG polyamide. The samples that include PA66/DI generally have a greater maximum expulsion time than samples that do not include PA66/DI.

The results provide evidence that maleic anhydride-grafted polyolefin, high AEG polyamide, and/or PA66/DI provide an increased maximum expulsion time.

[0112] It is observed that the impact resistance of 2.1 mm polyamide extruded sheet specimens is equivalent or better than that of the 2.0 mm polycarbonate specimen. The extruded sheets formed from samples that include maleic anhydride-grafted polyolefin generally have a greater impact resistance than extruded sheets formed from samples that do not include maleic anhydride-grafted polyolefin. The extruded sheets fromed from high AEG polyamide generally have a greater impact resistance than extruded sheets formed from samples that did not include high AEG polyamide, with the samples that include both high AEG polyamide and maleic anhydride-grafted polyolefin having greater impact resistance than samples that include the high AEG polyamide and do not include the maleic anhydride-grafted polyolefin or samples that include the maleic anhydride-grafted polyolefin but do not include the high AEG polyamide.

The extruded sheets that include PA66/DI generally have a greater impact resistance than extruded sheets that do not include PA66/DI. The results provide evidence that maleic anhydride-grafted polyolefin, high AEG polyamide, and/or PA66/DI increase impact resistance. [0113] All of the samples are readily molded into a variety of enclosure shapes including a square box, rectangular box, cylindrical, oval, polygonal, and the like.

[0114] The terms and expressions that have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the embodiments of the present invention. Thus, it should be understood that although the present invention has been specifically disclosed by specific embodiments and optional features, modification and variation of the concepts herein disclosed may be resorted to by those of ordinary skill in the art, and that such modifications and variations are considered to be within the scope of embodiments of the present invention.

Exemplary Aspects.

[0115] The following exemplary aspects are provided, the numbering of which is not to be construed as designating levels of importance:

[0116] Aspect 1 provides a composition comprising: a condensation polyamide, wherein the condensation polyamide is at least 30 wt% of the composition, wherein the condensation polyamide is the predominant polyamide in the composition; and from >10 wt% to <50 wt% of a maleated polyolefin, wherein the maleated polyolefin comprises maleic anhydride grafted onto a polyolefin backbone, the maleated polyolefin having a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin; wherein the composition is formable into a sheet.

[0117] Aspect 2 provides the composition of Aspect 1 , wherein the composition is formable into an extruded sheet.

[0118] Aspect 3 provides the composition of any one of Aspects 1-2, wherein the condensation polyamide is 30-99.9 wt% of the composition.

[0119] Aspect 4 provides the composition of any one of Aspects 1-3, wherein the condensation polyamide is 60-99.9 wt% of the composition.

[0120] Aspect 5 provides the composition of any one of Aspects 1-4, wherein the condensation polyamide is >40 to <50 wt% of the composition.

[0121] Aspect 6 provides the composition of any one of Aspects 1-5, wherein the condensation polyamide is chosen from nylon 66, nylon 66/6T, nylon 66/DI, and a combination thereof.

[0122] Aspect 7 provides the composition of any one of Aspects 1-6, wherein the condensation polyamide is nylon 66 having an AEG of >65 milliequivalents per kg (meq/kg) and <130 meq/kg.

[0123] Aspect 8 provides the composition of any one of Aspects 1-7, wherein the condensation polyamide is a nylon 66/MPMD-I copolymer. [0124] Aspect 9 provides the composition of any one of Aspects 1-8, wherein the condensation polyamide is chosen from nylon 66, nylon 66/6T, and a combination thereof, and wherein the composition further comprises a nylon-6, 6/MPMD-I copolymer.

[0125] Aspect 10 provides the composition of Aspect 9, wherein the condensation polyamide is nylon 66.

[0126] Aspect 11 provides the composition of any one of Aspects 9-10, wherein the condensation polyamide is 30 wt% to 60 wt% of the polyamide composition.

[0127] Aspect 12 provides the composition of any one of Aspects 9-11, wherein the nylon 66/MPMD-I copolymer is a random copolymer.

[0128] Aspect 13 provides the composition of any one of Aspects 9-12, wherein the nylon 66/MPMD-I copolymer is >2 to <50 wt% of the composition.

[0129] Aspect 14 provides the composition of any one of Aspects 9-13, wherein the nylon 66/MPMD-I copolymer is >25 to <35 wt% of the composition.

[0130] Aspect 15 provides the composition of any one of Aspects 9-14, wherein the composition has a recycled amine content of >0.2 wt% to < 10 wt%.

[0131] Aspect 16 provides the composition of any one of Aspects 1-15, wherein the composition further comprises an additional polyamide comprising nylon 66, nylon 612, nylon 610, nylon 12, nylon 6, nylon 66/6T, nylon 66/DI, nylon 66/DI, nylon 66/D6, nylon 66/DT, nylon 66/610, nylon 66/612, nylon 11, nylon 46, nylon 69, nylon 1010, nylon 1212, nylon 6T/DT, nylon DT/DI, a polyamide copolymer, or a combination thereof, wherein the additional polyamide is >0 to <85 wt% of the composition.

[0132] Aspect 17 provides the composition of any one of Aspects 1-16, wherein the additional polyamide is >15 to <85 wt% of the composition.

[0133] Aspect 18 provides the composition of any one of Aspects 1-17, wherein the additional polyamide is nylon 6.

[0134] Aspect 19 provides the composition of Aspect 18, wherein the nylon 6 is >0 to <1 wt% of the composition.

[0135] Aspect 20 provides the composition of any one of Aspects 1-19, wherein the composition is free of nylon 6.

[0136] Aspect 21 provides the composition of any one of Aspects 1-20, wherein the composition is free of reinforcing fibers. [0137] Aspect 22 provides the composition of any one of Aspects 1-21, wherein the composition comprises 0 wt% to 2 wt% reinforcing fibers.

[0138] Aspect 23 provides the composition of any one of Aspects 1-22, wherein the composition comprises glass fibers

[0139] Aspect 24 provides the composition of Aspect 23, wherein the glass fibers are >1 wt% to <50 wt% of the composition.

[0140] Aspect 25 provides the composition of any one of Aspects 23-24, wherein the glass fibers are >10 wt% to <42 wt% of the composition.

[0141] Aspect 26 provides the composition of any one of Aspects 23-25, wherein the glass fibers are >10 wt% to <35 wt% of the composition.

[0142] Aspect 27 provides the composition of any one of Aspects 23-26, wherein the glass fibers are >15 wt% to <30 wt% of the composition.

[0143] Aspect 28 provides the composition of any one of Aspects 1-27, wherein the maleated polyolefin comprises a polyolefin backbone that comprises EPDM, ethylene-octene, polyethylene, polypropylene, or a combination thereof.

[0144] Aspect 29 provides the composition of any one of Aspects 1-28, wherein the maleated polyolefin is free of EPDM.

[0145] Aspect 30 provides the composition of any one of Aspects 1-29, wherein the maleated polyolefin has a grafted maleic anhydride incorporation of >0.1 to <1.4 wt% based on total weight of the maleated polyolefin.

[0146] Aspect 31 provides the composition of any one of Aspects 1-30, wherein the maleated polyolefin has a grafted maleic anhydride incorporation of >0.15 to <1.25 wt% based on total weight of the maleated polyolefin.

[0147] Aspect 32 provides the composition of any one of Aspects 1-31, wherein the maleated polyolefin has a glass transition temperature (T ) of >-70 °C to <0 °C.

[0148] Aspect 33 provides the composition of any one of Aspects 1-32, wherein the maleated polyolefin has a glass transition temperature (T ) of >-60 °C to <-20 °C.

[0149] Aspect 34 provides the composition of any one of Aspects 1-33, wherein the maleated polyolefin has a glass transition temperature (T _g ) of >-60 °C to <-30 °C.

[0150] Aspect 35 provides the composition of any one of Aspects 1-34, wherein the condensation polyamide has an AEG of >65 milliequivalents per kg (meq/kg) and <130 meq/kg, or the maleated polyolefin, or domains thereof, ls/are uniformly distributed in the condensation polyamide or in the composition, or the condensation polyamide has an RV of at least 35, or the condensation polyamide is chosen from nylon 66, nylon 66/6T, nylon 66/DI, and a combination thereof, or a combination thereof.

[0151] Aspect 36 provides the composition of any one of Aspects 1-35, wherein the composition is a compounded composition comprising one or more other components.

[0152] Aspect 37 provides the composition of Aspect 36, wherein the one or more other components comprise a modified polyphenylene ether, an impact modifier, a flame retardant, a chain extender, a heat stabilizer, a colorant additive, a filler, a conductive fiber, glass fibers, another polyamide other than the condensation polyamide, or a combination thereof.

[0153] Aspect 38 provides the composition of any one of Aspects 36-37, wherein the one or more other components comprise a chain extender comprising a dialcohol, a bis-epoxide, a polymer comprising epoxide functional groups, a polymer comprising anhydride functional groups, a bis-N-acyl bis-caprolactam, a diphenyl carbonate, a bisoxazoline, an oxazolinone, a diisocyanate, an organic phosphite, a bis-ketenimine, a dianhydride, a carbodiimide, a polymer comprising carbodiimide functionality, or a combination thereof.

[0154] Aspect 39 provides the composition of any one of Aspects 36-38, wherein the one or more other components comprise a chain extender, wherein the chain extender is >0.05 to <5 wt% of the compounded polyamide composition.

[0155] Aspect 40 provides the composition of Aspect 39, wherein the chain extender comprises a maleic anhydride-polyolefin copolymer

[0156] Aspect 41 provides the composition of any one of Aspects 1-40, wherein the sheet has a thickness of 0.01 mm to 10 mm, or 0.1 mm to 10 mm.

[0157] Aspect 42 provides the composition of any one of Aspects 1-41, wherein the sheet has a thickness of 0.2 mm to 6 mm.

[0158] Aspect 43 provides the composition of any one of Aspects 1-42, wherein a width- to-thickness ratio of the sheet is at least 10, or at least 20. [0159] Aspect 44 provides the composition of any one of Aspects 1-43, wherein a width- to-thickness ratio of the sheet is >10 to <40,000, or >20 to <20,000.

[0160] Aspect 45 provides the composition of any one of Aspects 1-44, wherein the composition exhibits melt strength of >0.3 to <1.0 N in a Rheotens test conducted at 270 °C to 290 °C, a moisture level of 0.03-0.1%, and an extrusion speed of 300-700 mm/s.

[0161] Aspect 46 provides the composition of Aspect 45, wherein the melt strength is

>0.8 N to <1.0 N.

[0162] Aspect 47 provides the composition of any one of Aspects 1-46, wherein the composition exhibits a maximum expulsion time of >7 seconds, wherein the maximum expulsion time is the time until crystallization of the composition prevents from a proper blow-mold forming of a part.

[0163] Aspect 48 provides the composition of any one of Aspects 1-47, wherein the sheet exhibits an impact resistance in kJ/m ² that is within 10% of an impact resistance of a polycarbonate sheet of like thickness under like impact resistance testing conditions.

[0164] Aspect 49 provides the composition of any one of Aspects 1-48, wherein the maleated polyolefin primarily resides in islands in a condensation polyamide sea.

[0165] Aspect 50 provides a reacted product of the composition of any one of Aspects 1 -

49, wherein the reacted product comprises a polyamide-polyolefin copolymer formed from at least partial reaction of the condensation polyamide and the maleated polyolefin of the composition of any one of Aspects 1 -49, wherein the reacted product is formable into the sheet. [0166] Aspect 51 provides the reacted product of Aspect 50, wherein the reacted product is extrudable into the sheet.

[0167] Aspect 52 provides the reacted product of any one of Aspects 50-51, wherein the reacted product comprises the polyamide-polyolefin copolymer in a concentration range of >50 to <7500 ppmw, based on the total weight of the reacted product.

[0168] Aspect 53 provides the reacted product of any one of Aspects 50-52, wherein the reacted product comprises the polyamide-polyolefin copolymer in a concentration range of >100 to <4900 ppmw, based on the total weight of the reacted product.

[0169] Aspect 54 provides the reacted product of any one of Aspects 50-53, wherein the reacted product comprises the polyamide-polyolefin copolymer in a concentration range of >225 to <3750 ppmw, based on the total weight of the reacted product. [0170] Aspect 55 provides the reacted product of any one of Aspects 50-54, wherein the sheet has a thickness of 0.01 mm to 10 mm, or 0.1 mm to 10 mm.

[0171] Aspect 56 provides the reacted product of any one of Aspects 50-55, wherein the sheet has a thickness of 0.2 mm to 6 mm.

[0172] Aspect 57 provides the reacted product of any one of Aspects 50-56, wherein a width-to-thickness ratio of the sheet is at least 10, or at least 20.

[0173] Aspect 58 provides the reacted product of any one of Aspects 50-57, wherein a width-to-thickness ratio of the sheet is >10 to <40,000, or >20 to <20,000.

[0174] Aspect 59 provides the reacted product of any one of Aspects 50-58, wherein the reacted product exhibits melt strength of >0.3 to <1.0 N in a Rheotens test conducted at 270 °C to 290 °C, a moisture level of 0.03-0.1%, and an extrusion speed of 300-700 mm/s.

[0175] Aspect 60 provides the reacted product of Aspect 59, wherein the melt strength is

>0.8 to <1.0 N.

[0176] Aspect 61 provides the reacted product of any one of Aspects 50-60, wherein the reacted product exhibits a maximum expulsion time of >7 seconds, wherein the maximum expulsion time is the time until crystallization of the composition prevents from a proper blow- mold forming of a part.

[0177] Aspect 62 provides the reacted product of any one of Aspects 50-61, wherein the sheet exhibits an impact resistance in kJ/m ² that is within 10% of an impact resistance of a polycarbonate sheet of like thickness under like impact resistance testing conditions.

[0178] Aspect 63 provides a composition, or a reacted product thereof, the composition comprising: a condensation polyamide, wherein the condensation polyamide is at least 30 wt% of the composition, wherein the condensation polyamide is the predominant polyamide in the composition, wherein the condensation polyamide is polyamide-66/MPMD-I; and from >10 wt% to <50 wt% of a maleated polyolefin, wherein the maleated polyolefin comprises maleic anhydride grafted onto a polyolefin backbone, the maleated polyolefin having a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin; wherein the composition or reacted product thereof is extrudable into a sheet. [0179] Aspect 64 provides a composition, or a reacted product thereof, the composition comprising:

>40 to <50 wt.% polyamide-6,6;

>15 to <45 wt.% polyamide-66/MPMD-I; and from >10 wt% to <50 wt% of a maleated polyolefin, wherein the maleated polyolefin comprises maleic anhydride grafted onto a polyolefin backbone, the maleated polyolefin having a grafted maleic anhydride incorporation of >0.05 to <1.5 wt% based on total weight of the maleated polyolefin; wherein the composition or reacted product thereof is extrudable into a sheet.

[0180] Aspect 65 provides an article formed from the composition of any one of Aspects

1-49 or the reacted product of any one of Aspects 50-62.

[0181] Aspect 66 provides the article of Aspect 65, wherein the article is an extruded sheet.

[0182] Aspect 67 provides the article of Aspect 66, wherein the article is a folded extruded sheet.

[0183] Aspect 68 provides the article of any one of Aspects 66-67, wherein the sheet is a film.

[0184] Aspect 69 provides the article of any one of Aspects 66-68, wherein the sheet has a thickness of 0.01 mm to 10 mm, or 0.1 mm to 10 mm.

[0185] Aspect 70 provides the article of any one of Aspects 66-69, wherein the sheet has a thickness of 0.2 mm to 6 mm.

[0186] Aspect 71 provides the article of any one of Aspects 66-70, wherein a width-to- thickness ratio of the sheet is at least 10, or at least 20.

[0187] Aspect 72 provides the article of any one of Aspects 66-71 , wherein a width-to- thickness ratio of the sheet is >10 to <40,000, or >20 to <20,000.

[0188] Aspect 73 provides the article of any one of Aspects 66-72, wherein the sheet exhibits an impact resistance in kJ/m ² that is within 10% of an impact resistance of a polycarbonate sheet of like thickness under like impact resistance testing conditions.

[0189] Aspect 74 provides the article of any one of Aspects 65-73, wherein the article comprises a film, a mat, a liner, a flooring, a construction material, a pad, a shutter, a panel, a belt, a slide, an enclosure, a vehicle component, an architectural component, or a combination thereof.

[0190] Aspect 75 provides the article of any one of Aspects 65-74, wherein the article comprises a slip sheet, a die cutting mat, a silo liner, a die cutting mat, a truck bed liner, flooring, a construction material, a ground pad, a construction envelope system, a storm-resistant shutter, a hail-resistant panel, a geo-textile, a conveying system component, an electronic equipment enclosure, or a combination thereof.

[0191] Aspect 76 provides a method of making the composition of any one of Aspects 1-

49, the reacted product of any one of Aspects 50-62, or a combination thereof, the method comprising: combining the condensation polyamide and the maleated polyolefin to form the composition of any one of Aspects 1-49, the reacted product of any one of Aspects 50-62, or a combination thereof.

[0192] Aspect 77 provides the method of Aspect 76, wherein the method comprises combining the condensation polyamide and the maleated polyolefin before adding a chain extender thereto.

[0193] Aspect 78 provides the method of Aspect 77, comprising: providing to a first compounder extruder zone a feed comprising the condensation polyamide and the maleated polyolefin; maintaining the first compounder extruder zone conditions sufficient to obtain a first compounded polyamide melt inside the first compounder extruder zone; introducing a chain extender to the first compounded polyamide melt in a second compounder extruder zone, and maintaining the second compounder extruder zone conditions sufficient to obtain a second compounded polyamide melt inside the second compounder extruder zone, wherein the second compounded polyamide melt is the composition of any one of Aspects 1 -49, the reacted product of any one of Aspects 50-62, or a combination thereof.

[0194] Aspect 79 provides the method of Aspect 78, wherein a barrel of a screw extruder comprises the first compounder extruder zone and the second compounder extruder zone; the providing of the feed to the first compounder extrusion zone comprises providing the feed to a feed inlet of the barrel; the barrel has a length; and the chain extender is introduced to the second compounder extruder zone at least 1/4 of the length of the barrel from the feed inlet of the barrel.

[0195] Aspect 80 provides the method of any one of Aspects 78-79, wherein the introducing of the chain extender to the first compounded polyamide melt in the second compounder extruder zone comprises introducing the chain extender to the first compounded polyamide melt after at least 50 wt% of the maleated polyolefin fed has incorporated into the condensation polyamide.

[0196] Aspect 81 provides a method of extrusion of a polyamide resin, the method comprising: providing the composition of any one of Aspects 1-49, the reacted product of any one of Aspects 50-62, or a combination thereof, to a feed zone of an extruder; maintaining extruder barrel conditions sufficiently to obtain a polyamide resin melt inside the extruder; and producing extrudate from the extruder while optionally recovering vapor from the extruder via a vacuum draw.

[0197] Aspect 82 provides the method of Aspect 81, wherein producing the extrudate from the extruder comprises extruding the extrudate into a sheet.

[0198] Aspect 83 provides the composition, reacted composition, article, or method of any one or any combination of Aspects 1-82 optionally configured such that all elements or options recited are available to use or select from.