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WO/2021/129432A1 |
Provided is a propylene polymerization method, comprising the following steps: 1) performing a pre-polymerization reaction: mixing and stirring a catalyst and liquid-phase propylene cooled to 5-10°C in a pre-polymerization reaction zone...
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WO/2021/133613A1 |
A process to prepare an alpha composition comprising a first ethylene/alpha-olefin/interpolymer fraction and a second ethylene/alpha-olefin/interpolymer fraction; said process comprising polymerizing, in one reactor, a reaction mixture, ...
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WO/2021/124054A1 |
Disclosed herein are processes for producing blends of recycled polymeric material and virgin polyethylene. Post-consumer recycled plastic (PCR) can vary widely with respect to composition which includes mixtures of variable amounts of d...
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WO/2021/126523A1 |
The present disclosure provides methods for the production of polymer blends using multiple reactors arranged in parallel. The methods comprise: providing a first feed comprising propylene to a first reactor operated in parallel with a s...
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WO/2021/120146A1 |
A cleansing wipe may be formed from a nonwoven and includes a first ethylene/alpha-olefin interpolymer and a second ethylene/alpha-olefin interpolymer. The cleansing wipe may also have a SaMbSc configuration, wherein the M, meltblown lay...
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WO/2021/127150A1 |
Embodiments are directed towards a use of a supported gas-phase biphenylphenol polymerization catalyst to make a polymer via a gas-phase polymerization process, wherein the supported gas-phase biphenylphenol polymerization catalyst is ma...
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WO/2021/126479A1 |
Ethylene, alpha olefins, and other olefinically unsaturated monomers may be polymerized under fluidized bed polymerization reaction conditions in the presence of a Ziegler-Natta catalyst. A recycle stream featuring an induced condensing ...
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WO/2021/123592A1 |
The invention relates to a copolymer of ethylene and a 1,3-diene, containing more than 50 mol % of ethylene units and containing 1,2-cyclohexanediyl units, the 1,3-diene being 1,3-butadiene or a mixture of 1,3-dienes containing 1,3-butad...
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WO/2021/126449A1 |
A polyethylene suitable for use in blown film can comprise ethylene derived units and C3 to C12 α-olefin derived units at 0.5 wt% to 10 wt% of the polyethylene and have a reversed-co-monomer index (RCI,m) of 35 to 100, a comonomer distr...
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WO/2021/122992A1 |
A reactor for the polymerization of olefins comprising a first inlet for introducing a first stream comprising monomer(s), catalyst(s) and optionally hydrogen, solvent or comonomer(s) and/or mixtures thereof, at least one outlet for with...
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WO/2021/124157A1 |
Disclosed herein are polymerization processes where recycled polymeric material is fed to polymerization process to produce a blend of virgin polymer with recycled polymeric content.
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WO/2021/125243A1 |
Provided is a resin moulded article provided with: a base comprising a resin composition containing a copolymer that contains a conjugated diene unit and a non-conjugated olefin unit and has a butylene unit content of 0 mol%; and a metal...
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WO/2021/126448A1 |
A polyethylene comprising of ethylene derived units and 0.5 wt% to 10 wt% C3 to C12 α-olefin derived units may be synthesized using a mixed catalyst that comprises rac-dimethylsilylbis(tetrahydroindenyl)zirconium dichloride and a zircon...
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WO/2021/123591A1 |
The invention relates to a diorganomagnesium compound of formula RB-Mg-RA, RB being different from RA, RB comprising a benzene ring substituted by the magnesium atom, wherein one of the carbon atoms of the benzene ring on the ortho posit...
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WO/2021/123568A1 |
The invention relates to a rubber composition having adhesion to a natural rubber composition, said composition being at least based on 5 to 95 phr of polyisoprene having a percentage by weight of 1,4-cis bonds of at least 90% of the wei...
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WO/2021/126443A2 |
A polymerization process includes contacting an ethylene feed containing ethylene monomers with a catalyst feed containing a hafnium-based or zirconium-based single-site catalyst in a solution so as to polymerize the ethylene monomers in...
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WO/2021/123589A1 |
The invention relates to a catalytic system based on at least one metallocene and a diorganomagnesium compound of formula RB-Mg-RA, RB being different from RA and comprising a benzene ring substituted by the magnesium atom, wherein one o...
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WO/2021/123590A1 |
The invention relates to a diorganomagnesium compound of formula RB-Mg-RA, RA being different from RB, RA being a polymer chain containing units of a monomer selected from the group of monomers consisting of 1,3-dienes, aromatic α-monoo...
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WO/2021/121795A1 |
The invention relates to a polyacrylate-based graft copolymer comprising a polyacrylate backbone and polyolefin side chains grafted thereon, wherein the graft copolymer is prepared by reacting a first polymer and a second polymer, wherei...
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WO/2021/118715A1 |
The present disclosure relates to processes for producing a catalyst composition. A process may include mixing a catalyst compound having a transition metal atom, an activator, and a support to form a supported catalyst mixture. A proces...
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WO/2021/118103A1 |
The present invention relates to a polyolefin. More particularly, the present invention relates to a polyolefin having a low copolymer content as well as exhibiting excellent mechanical properties.
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WO/2021/115829A1 |
A solid catalyst component for the (co)polymerization of olefins, comprising Ti, Mg, halogen, and at least one compound of formula (I) selected from specific non-aromatic diazo compounds is capable to produce LLDPE with good comonomer ra...
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WO/2021/119155A1 |
A biaxi ally-oriented film comprising a polyethylene having (A) a melt flow index of 1.0 g/10 min or more, (B) a density of 0.90 g/cm3 to less than 0.940 g/cm3, (C) a g'LCB of greater than 0.8, (D) ratio of comonomer content at Mz to com...
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WO/2021/119158A1 |
This invention relates to a biaxially-oriented polyethylene film comprising polyethylene having: (A) a melt index, I2, of 1.0 g/10 min or greater; (B) a density of 0.925 g/cm3 to 0.945 g/cm3; (C) a g'vis of less than 0.8; (D) an Mz of 1,...
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WO/2021/119152A1 |
This invention relates to an oriented polyethylene film comprising polyethylene having: (A) a melt flow index of 1.0 g/10 min or more, (B) a density of 0.90 g/cm3 to less than 0.940 g/cm3, (C) a g'LCB of greater than 0.8, (D) ratio of co...
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WO/2021/119510A1 |
The present disclosure provides compositions comprising propylene-based elastomer, articles thereof, and methods thereof. In at least one embodiment, a composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol ...
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WO/2021/118145A1 |
The present invention relates to a method for preparing an olefin-based polymer by gas-phase polymerization. Specifically, the present invention relates to a method for preparing an olefin-based polymer by gas-phase polymerization of ole...
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WO/2021/109372A1 |
A defoaming composition comprising: A. a main monomer, which refers to a non-ionic monomer which only contains one vinyl group in one molecule and can form a polymer that is soluble in an organic solvent; O. a functional monomer olefin, ...
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WO/2021/111282A1 |
The present invention provides a transition metal compound, a catalyst composition comprising same, and a method for producing an olefin polymer using the catalyst composition. A transition metal compound having a specific functional gro...
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WO/2021/110645A1 |
A process for preparing ethylene polymers comprising polymerizing ethylene or copolymerizing ethylene and one or more comonomers at a temperature from 180°C to 350°C and a pressure of from 110 MPa to 350 MPa in a continuously operated ...
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WO/2021/112088A1 |
Provided is a composition for obtaining a cured article with high mechanical strength (elastic modulus etc.) at room and high temperatures. More specifically, provided is curable composition containing an additive resin and a copolymer o...
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WO/2021/112489A1 |
The present invention relates to a method for producing an olefin-based polymer. Particularly, the present invention relates to a method for producing an olefin-based polymer, the method controlling the properties of an olefin polymer th...
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WO/2021/108134A1 |
The present disclosure provides an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The ethylene-based polymer composition includes ethylene monomer and a mixture of hy...
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WO/2021/108131A1 |
The present disclosure provides a composition. In an embodiment, the composition is an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The composition includes ethylen...
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WO/2021/107723A1 |
The present invention relates to a polyolefin-based resin composition and a medical hose prepared therefrom, the polyolefin-based resin composition comprising: low-density polyethylene; polyolefin-based elastomer; and random polypropylen...
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WO/2021/106413A1 |
Provided is a rubber-metal complex in which a rubber member and a metal member are firmly attached to each other. In this rubber-metal complex, the rubber member and the metal member are attached to each other with an adhesive layer inte...
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WO/2021/107508A1 |
The present invention relates to an olefin-based polymer film and a manufacturing method therefor. An olefin-based polymer film according to a specific embodiment of the present invention, particularly, a linear low density polyethylene ...
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WO/2021/108132A1 |
The present disclosure provides a composition. In an embodiment, the composition is an ethylene-based polymer composition formed by high pressure (greater or equal to 100 MPa) free radical polymerization. The ethylene-based polymer compo...
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WO/2021/105299A1 |
The present invention provides a process for producing a polyethylene composition by treating a cross-linkable ethylene copolymer containing monomer units with hydrolysable silane-groups and polar monomer units. The invention further pro...
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WO/2021/101292A1 |
The present invention provides a supported hybrid metallocene catalyst that has high copolymerizability while exhibiting excellent process stability and high polymerization activity in an ethylene polymerization reaction, and thus is use...
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WO/2021/101153A1 |
The present invention relates to an olefinic polymer and a preparation method therefor. An olefinic polymer according to an embodiment of the present invention is prepared in the presence of a bridge-type transition metal compound of cyc...
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WO/2021/099106A1 |
There is described a process for the continuous solution polymerization comprising polymerizing olefins of formula CH2=CHR, wherein R is hydrogen or a hydrocarbon radical having from 1 to 8 carbon atoms, and wherein one of the olefins ha...
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WO/2021/096772A1 |
Polyethylene copolymers with a structure that provides improved film properties are provided. The copolymers can have a density of about 0.905 to about 0.911 g/cm3. The copolymers can also have a DRI/12 ratio of about 0.0008 to about 0.0...
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WO/2021/095683A1 |
The present invention addresses the problem of providing a resin composition and a molded article with suppressed surface stickiness while having excellent vibration absorbing ability and stress relaxing ability at room temperature. This...
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WO/2021/091768A1 |
In a process for producing an olefin polymer, an olefin monomer is polymerized to produce a particulate polymer product containing unreacted monomer. The polymer product is contacted with an inert gas to strip hydrocarbon impurities ther...
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WO/2021/091994A1 |
Embodiments provide bimodal polymerization catalyst systems comprising metallocene olefin polymerization catalysts and biphenylphenol polymerization catalysts made from biphenylphenol polymerization precatalysts of Formula I.
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WO/2021/091983A1 |
Embodiments are directed towards the use of a supported biphenylphenol polymerization catalyst made from a biphenylphenol polymerization precatalyst of Formula I via a gas-phase or slurry-phase polymerization process under gas-phase or s...
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WO/2021/091725A1 |
Methods and systems for generating a polymer resin comprising: contacting a first monomer with a polymerization catalyst having a first catalytic activity to form an intermediate composition comprising a first polymeric resin and the pol...
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WO/2021/088198A1 |
Provided is an electronic telecommunication article comprising a crosslinked fluoropolymer layer, wherein the fluoropolymer comprises at least 80, 85, or 90% by weight of polymerized units of perfluorinated monomers and cure sites. Furth...
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WO/2021/089663A1 |
The invention is directed to a sealing device comprising a first polymeric layer comprising and a second polymeric layer comprising at least 55 wt.-% of at least one butene-1 copolymer having a content of butene-1 derived units of at lea...
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