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WO/1992/001749A1 |
Compatible copolymer-containing compositions are prepared by the reaction of a salicylate-capped polyphenylene ether, preferably prepared by reaction of a polyphenylene ether with trimellitic anhydride phenyl salicylate ester, with a pol...
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WO/1992/000748A1 |
Copolymers of poly(alkylene oxides) and amino acids or peptide sequences are disclosed, which amino acids or peptide sequences have pendant functional groups that are capable of being conjugated with pharmaceutically active compounds for...
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WO/1992/000353A1 |
Granular compositions which comprise a block copolymer containing blocks of polybenzazole polymer and blocks of thermoplastic polymer can be compression molded to provide a molded article having physical properties superior to molded art...
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WO/1991/018023A1 |
A process for synthesizing cyclodextrin polymer either by the reaction of cyclodextrin derivative with polyvinyl alcohol, cellulose or their derivative(s), or by the copolymerization of cyclodextrin derivative with vinyl acetate or methy...
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WO/1991/016370A1 |
Fluorinated polyether compositions having reactive end groups, such as formula (I) can be crosslinked to produce cured films useful as dielectrics for microelectronic applications. Other reactive end groups such as allyl, benzocyclobutyl...
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WO/1991/014715A1 |
A method for producing a novel evaporable dispersion is disclosed. The dispersion exhibits shelf-storage stability at room temperature for more than 1 year. Such a dispersion, upon evaporation of the evaporable components, is able to for...
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WO/1991/014248A1 |
Disclosed herein are block and random graft copolymer compositions comprising a base polymer of crystalline polyolefin to which is grafted at least one side or end chain of a hydroxy-ended polylactone, the process for making said graft c...
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WO/1991/011469A1 |
Wax crystal modifiers for fuel oils are obtained by reaction of an ethylene alpha olefin polymer with reactive functionality (e.g. an acid group) and an oil soluble organic material with appropriate functionality, e.g., a polyisobutylene...
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WO/1991/009902A1 |
A method for crosslinking chlorinated (co)polymers by reacting said (co)polymers at between 50 and 230 �C without the presence of a solvent, with an organometallic amino-type derivative of tin, lead, antimony or bismuth; crosslinkable ...
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WO/1991/009074A1 |
A thermoplastic graft copolymer composed of a polymer with a glass transition point of 10 °C or below as a principal chain and an aromatic oligomer with a flow temperature of 100 °C or above as a side chain; and a process for the produ...
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WO/1991/009063A1 |
A low molecular weight copolymer reaction product of a copolymer acid of an alpha-olefin and an unsaturated carboxylic acid, preferably an alpha, beta-ethylenically unsaturated carboxylic acid, and at least one amino acid compound. The p...
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WO/1991/008250A1 |
A process of forming block and/or graft copolymers of a polyester and a polyphenylene oxide which comprises heating a mixture of the polyester and the polyphenylene oxide in the presence of a phosphite compound.
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WO/1991/007451A1 |
Graft copolymers are disclosed which have formula (I), in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, a ranges from about 14 to 70,000, b ranges from 0 to about 70,000, c ranges from 0 to about 70,...
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WO/1991/006592A1 |
The impact strength of engineering resins may be improved by blending them with a graft copolymer, which copolymer comprises a continuous phase of an amorphous or semi-crystalline polymer backbone which incorporates or on which are graft...
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WO/1991/004995A1 |
Graft copolymers are disclosed having formula (I), wherein R and R' are hydrogen, alkyl, and the primary and secondary alkyl halides, a ranges from about 14 to 70,000, b ranges from 0 to about 70,000, c ranges from 0 to about 70,000, d r...
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WO/1991/004286A1 |
A filler for plastics material comprises natural starch which, before admixture with synthetic resin, is treated in a solution of calcium hydroxide or other alkali-earth metal hydroxide or of a metal hydroxide coordination complex having...
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WO/1991/002767A1 |
The invention provides novel copolymers of polyesters and polyolefins with high graft ratios and processes for producing these graft copolymers. The processes include grafting reactive groupings such as carboxyl or epoxy groups onto the ...
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WO/1991/002757A1 |
To prepare a biodegradable plastic, biodegradable materials such as starches and a non-biodegradable polymer such as a polystyrene, polyurethane, polyethylene, polypropylene, or polycarbonate are treated: (1) under heat, pressure and rea...
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WO/1991/002761A1 |
This invention relates to a block copolymer containing one or more blocks of a perfluoroether polymer and one or more blocks of a polymer made from selected hydrocarbon monomers, the blocks being connected by connecting segments, each su...
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WO/1991/002015A1 |
Hydrolysable polyesters based upon the random copolymerization of aromatic and absorbable aliphatic polyesters are disclosed. The copolymers are of particular value in polymer articles and fibers that are routinely discarded after use.
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WO/1990/014369A1 |
Graft and block copolymers of polyalkylvinyl ether and polyoxazoline moieties can be used as polymeric compatibilizers.
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WO/1990/012836A1 |
A process for enhancing the compatibility of polyester and polyamide in blends by adding thereto an effective amount of an aryl phosphoryl azide compound as for example diphenyl phosphoryl azide, and thereafter heating the composition un...
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WO/1990/012837A1 |
A process for producing a polyolefin-polyester graft copolymer by melt-kneading, in the presence of a minor part of water, a polyester having both an intrinsic viscosity of 0.5 to 1.8 and a concentration of terminal carboxyl group of 10 ...
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WO/1990/012054A1 |
The invention described relates to an effective compatibilizing agent for resin compositions of a polycarbonate and a polyolefin wherein the compatibilizing agent is a graft copolymer of modified polypropylene containing functional group...
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WO/1990/012052A2 |
A process for preparing a co-poly(amide/peptide) by reacting polymeric or oligomeric polypeptides and polymeric or oligomeric polyamides in the presence of an effective amount of one or more aryl phosphoryl azide compounds.
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WO/1990/012053A1 |
The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of steps: (a) the reaction of a dihydroxy-terminated poly(aryl ether) oligo...
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WO/1990/010034A1 |
The present invention provides a resin which is a mixture of a) the product of a diol and one or more diepoxides and b) an A-B-A block copolymer wherein A represents blocks of an epoxy/diol copolymer which is the reaction product of a di...
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WO/1990/006336A1 |
The present invention relates to modified polyelectrolytes which are useful as flocculents in separation processes, to processes for preparing the modified polyelectrolytes, flocculent compositions incorporating the modified polyelectrol...
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WO/1990/005755A1 |
Collagen, particularly atelopeptide collagen, exhibits improved handling charateristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
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WO/1990/003995A1 |
Block copolymers can be formed from heterocyclic polymers such as PBO and thermoplastic polymers such as polyamide or poly(aromatic ether ketone). The block copolymer compositions are thermoplastic and do not experience substantial phase...
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WO/1990/003404A1 |
The invention concerns a curable composition containing A) compounds with at least two activated double bonds (I) based on alpha,beta-unsaturated carbonyl compounds, alpha,beta-unsaturated carboxylic esters or alpha,beta-unsaturated nitr...
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WO/1990/000182A1 |
In a process for manufacturing a bituminous binder modified with a thermoplastic for building materials, in particular road building materials, molten bitumen is subjected to a homogenization treatment together with a thermoplastic or a ...
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WO/1989/012657A1 |
The invention provides a process for producing polyester ether copolymer, which comprises conducting polycondensation after or while mixing in a molten state a polyester of 0.3 [dl/g] or more in intrinsic viscosity with a polyether havin...
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WO/1989/010378A1 |
Coupling of block base copolymers terminated by a lithium atom of the typical formula S-B-Li, in which S is a monovinylaromatic hydrocarbon block and B is a conjugated diene block, by the use of at least one difunctional deactivating cou...
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WO/1989/009242A1 |
A block copolymer composition comprising: 1) 10-60 % by weight of a block copolymer [(A-B1)l1]m-Y1, 2) 20-90 % by weight of a block copolymer [(A-B2)l2]n-Y2, and 3) 0-50 % by weight of a block copolymer (A-B2)l3, in which A represents an...
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WO/1989/007618A1 |
The invention is directed to a modified polysaccharide material which comprises: (1) polysaccharide covalently bonded to a synthetic polymer; (2) the synthetic polymer being made from (a) a polymerizable compound which is capable of bein...
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WO/1989/007617A1 |
High-performance polymers having a rigid-rod backbone comprising a chain length of at least 25 monomer units joined together by covalent bonds wherein at least about 95 % of the bonds are substantially parallel; and solubilizing organic ...
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WO/1989/006660A1 |
Block copolymer composition containing 30 % by weight of an aromatic vinyl compound-conjugated diene block copolymer having an aromatic vinyl compound content of 10-90 % by weight and of formula (A-B)nX, in which "A" is the aromatic viny...
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WO/1989/005838A1 |
Thermoplastic composition comprising not less than 60 % by weight of a saturated polyester and not more than 40 % by weight of at least one polymer reinforcing agent. Said polymer reinforcing agent is an at least partially cross-linked c...
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WO/1989/005321A1 |
An epoxy-modified hydrocarbon resin prepared by epoxidizing a phenol-modified hydrocarbon resin, which is a copolymer between hydrocarbon olefins mainly composed of aromatic olefins such as indene, styrene, coumarone, etc. and a phenol, ...
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WO/1989/004337A1 |
Soluble and/or meltable polyamide-polyamide (PA-PA1), polyamide-polyamideimide (PA-PAI) or polyamide-polyimide (PA-PI) block copolymers of general formula (I) in which n is a whole number from 1 to 200, x is a whole number from 1 to 20, ...
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WO/1989/001962A1 |
A modified styrenic polymer is described, which comprises the reaction product of said polymer with an ethylenically unsaturated grafting agent having formula (I), wherein one to three of R1, R2, R3 and R4 are moieties containing reactiv...
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WO/1988/008597A1 |
Branched polyester compositions having high melt viscosities, especially under conditions of low shear, are prepared in a two-step method. The first step is the reaction of a linear polyester, polycarbonate or polyester-polycarbonate con...
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WO/1988/007558A1 |
This invention relates to a polymeric vehicle comprising a modified polymer containing covalently bonded mesogenic groups. The modified polymer may be used as the sole component of the polymeric vehicle for a coating to which may be adde...
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WO/1988/006607A1 |
Copolymers of propylene oxide and N-epoxy propyl lactams having the structures (I), (II) or (III), wherein R is (IV); a has a value of 1-3; p has a value of 1-2; m has a value of 0-1; k has a value of 2-200; w and z each have a value of ...
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WO/1988/003543A1 |
Partially grafted flexible thermoplastic compositions formed by melt blending under high shear, a thermoplastic material having available graft sites, said thermoplastic material being at least one continuous phase of the composition, an...
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WO/1988/003154A1 |
ABA triblock polymers, the A block being rigid having a transition away from its rigid phase above 70�C, the B block being wholly or partly ion-coordinating, elastomeric or amorphous, the B/A block length ratio being greater than 1. Wh...
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WO/1988/000055A1 |
Water-soluble macromolecular conjugate of hemoglobin, characterised in that it is comprised of, on the one hand, hemoglobin, and on the other hand a water-soluble polymer P comprising polar groups which macromolecular conjugate has sites...
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WO/1987/007622A1 |
Novel compositions of matter comprise homogeneous thermoset copolymers resulting from the reaction between a vinyl benzyl terminated ether of a polyphenol and a dicyanate ester of a polyphenol may be used as components in laminates which...
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WO/1987/007280A1 |
Hydroxyalkyl- and aminoalkyl-functionalized polyphenylene ethers are prepared by the reaction of polyphenylene ethers with bis-hydroxyalkyl maleates or fumarates, or with the corresponding acids or anhydrides, terephthaloyl chloride or t...
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