Abstract: High impact strength resin compositions and methods of preparations thereof. The compositions contain at least 60% polyamide together with an elastomer and a polymeric emulsifier. The elastomer is preferably a copolymer of ethylene and an acrylic ester, and the emulsifier is preferably an ethylene/acrylic ionomer with at least about 50% of the carboxyl groups neutralized by displacement of a proton with a metal ion. In a particularly preferred embodiment, the polyamide is dispersed in a continuous elastomeric phase.

Abstract: 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 until the desired enhancement in compatibility is obtained as evidenced by a lower of the individual melting points of the polyester and polyamide in the blend.

Abstract: A polyvinyl chloride resin composition is disclosed, which comprises (a) a vinyl chloride homo- or copolymer, (B) a plasticizer, (C) a blocked urethane prepolymer as essential components, the blocked urethane prepolymer (C) being a prepolymer of isocyanurate type polyisocyanate prepared from an alkylene diisocyanate which may contain in the alkylene chain thereof a substituted or unsubstituted cyclohexane or aromatic ring.

Abstract: An agent is provided which renders compatible at least two incompatible thermoplastic polymers. The agent contains one di- or trisequenced copolymer comprising at least one N-vinyl-pyrrolidone or methyl (meth) acrylate telomer and one mono- or difunctional oligomer selected from the group consisting of an ethylenically unsaturated polymerizable monomer, or a polycondensable monomer, or a lactam. The agent is prepared by condensation of the telomer with the oligomer and is used in the preparation of alloys of incompatible thermoplastic polymers.

Abstract: A paint resin composition which does not appreciably attack an old coated film or a substrate to be coated, said composition consisting essentially of(A) a copolymer having a glass transition point of from -30.degree. C. to +50.degree. C., a number average molecular weight of from 4,000 to 20,000 and a weight average molecular weight/number average molecular weight ratio of from 1.8 to 10 and obtained by copolymerizing (a-1) 1 to 50% by weight of a vinyl monomer having a hydroxyl group, (a-2) 0 to 5% by weight of a vinyl monomer having a carboxyl group, (a-3) 0 to 80% by weight of a polyester resin having a copolymerizable unsaturated bond, (a-4) 10 to 80% by weight of a vinyl monomer having a side-chain alkyl group with 4 to 8 carbon atoms, and (a-5) 4 to 49% by weight of another vinyl monomer copolymerizable with the monomers (a-1) to (a-4), the total proportion of these monomers being 100% by weight, in the presence of a radical initiator in a nonpolar organic solvent having an aniline point of 7.degree.

Abstract: Flame resistant polymer blends contain a polyetherimide and an impact strength-enhancing amount of a siloxane-polyetherimide copolymer and a solvent resistance-enhancing amount of a polycarbonate. These blends exhibit excellent impact strengths, high heat distortion temperatures, good solvent resistance, and amenability to blow-molding, injection molding and thermoforming operations. The blends are particularly suited to the manufacture of aircraft cabin interior components.

Abstract: Dispersions of core-shell polymers in caprolactam solutions of telechelic polymers capable of being polymerized to form rubber-modified nylon-6 block copolymers having improved impact strength wherein the core-shell polymer comprises a crosslinked elastomer core and a hard thermoplastic polymer shell and wherein the telechelic polymers preformed or formed in situ, are capped with lactam polymerization initiator groups.

Abstract: A thermoplastic resin composition comprising:(A) from 10 to 50% by weight of a maleimide copolymer of from 30 to 70 mol % of an aromatic vinyl monomer, from 30 to 50 mol % of a maleimide monomer, from 3 to 20 mol % of an unsaturated dicarboxylic anhydride monomer and from 0 to 50 mol % of other copolymerizable monomer;(B) from 40 to 80% by weight of a polyamide; and(C) from 3 to 40% by weight of a polyolefin polymer modified by from 0.1 to 10% by weight of an unsaturated dicarboxylic anhydride monomer and/or an unsaturated carboxylic acid monomer,wherein said maleimide copolymer is in the form of dispersed particles of from 0.01 to 1.0 .mu.m.

Abstract: This invention relates to novel compositions of a poly(imide) having phenylindane diamine and/or dianhydride moieties in the poly(imide) backbone and a polymeric component comprising:(a) a poly(etherimide) free of phenyl indane moieties in its backbone;(b) a poly(sulfone);(c) a poly(aryl ether ketone);(d) a poly(carbonate); or(e) a poly(arylate);and the compositions which have been cured. The compositions are useful as adhesives, coatings and matrix resins for fiber reinforced composites. The invention also relates to a multi-layered article for use in electronic devices, the article comprising a plurality of layers each comprising a cured composition of the invention with one or more intervening layers of conductive or semi-conductive material.

Abstract: A thermoplastic resin composition is disclosed, which is obtained by melt-kneading (A) from 60 to 97 parts by weight of a polyamide resin and (B) from 3 to 40 parts by weight of an ethylene copolymer comprising (a) from 40 to 90% by weight of an ethylene unit, (b) from 5 to 60% by weight of an alkyl .alpha., .beta.-unsaturated carboxylate unit, and (c) from 0.3 to 10% by weight of a maleic anhydride unit and then melt-kneading the resulting composition with (C) from 0.01 to 20 parts by weight of a polyfunctional compound having at least two functional groups having reactivity to a carboxyl group, a carboxylic acid anhydride group or an amino group per molecule to effect partial crosslinking reaction. The composition provides molded articles having a good balance of physical properties and satisfactory appearance.

Abstract: A thermoplastic resin composition having a flexural modulas as defined in ASTM D790 of from 500 to 15,000 kg/cm.sup.2, which is obtainable by partial crosslinking upon melt kneading a mixture comprising:(A) from 20 to 60 parts by weight of a polyamide resin; and(B) from 80 to 40 by weight of an ethylene copolymer comprising (a) from 40 to 90% by weight of an ethylene unit, (b) from 5 to 60% by weight of an .alpha.,.beta.-unsaturated carboxylic acid alkyl ester unit, and (c) from 0.3 to 10% by weight of a maleic anhydride unit or a partially ionized maleic anhydride unit; with(C) from 0.01 to 20 parts by weight, based on 100 parts by weight of the sum of the components (A) and (B), of a polyfunctional compound containing at least two functional groups which are reactive to a carboxyl group, a carboxylic anhydride group, or an amino group, in the molecule thereof, is disclosed.

Abstract: A fiber-reinforced rubber composition capable of providing a vulcanizate having an excellent strength and modulus and a production process thereof. This fiber-reinforced rubber composition includes fine short fibers of thermoplastic polymer having ##STR1## groups buried in vulcanizable rubber. The vulcanizable rubber and the thermoplastic polymer are grafted to each other through a resol type alkylphenol formaldehyde resin precondensate or a novolak type phenol formaldehyde resin precondensate at an interface of the fiber. The ratio of the fiber to the vulcanizable rubber (A) 1 to 70 parts by weight based on 100 parts by weight of the rubber in the case of the resol type alkylphenol formaldehyde resin precondensate or (B) 1 to 100 parts by weight based on 100 parts by weight of the rubber in the case of the novolak type phenol formaldehyde resin precondensate.

Abstract: Blow molding nylon resin blends comprising nylon resin having relative viscosity of less than about 100 blended with sufficient melt viscosity enhancing polymer to be adaptable to blow molding and sheet extrusion. Such blends have a melt viscosity at low deformation rates of at least ten times the melt viscosity at low deformation rates of the nylon resin.

Abstract: An impact resistant resin composition comprising from 30 to 70% (wt) of a polyamide with at least 40 mol/10.sup.6 g amino groups, from 5 to 40% (wt) of a polyarylate, from 5 to 40% by weight of the adduct of an unsaturated dicarboxylic acid anhydride and a butadiene copolymer with at least one monomer from the group of aromatic vinylmonomer, an unsaturated nitrile monomer and an acrylate monomer, and from 3 to 30% (wt) of an epoxy group-containing olefine copolymer obtained by copolymerizing at least one unsaturated glycidyl monomer with at least one unsaturated olefin monomer.

Abstract: A method for the production of a molecular composite of an aromatic polymer and matrix polymer suitable for use as structural materials for aircraft, automobiles and spacecraft using a solution of low corrosiveness, thereby resulting in a polymer alloy with excellent structural properties wherein physical degradation of the alloy is reduced and the corrosive effect of the alloy on metals in contact with the alloy is also reduced.

Abstract: This application relates to miscible blends of biphenyl containing poly(aryl sulfones) and isopropylidene based polyimides. These blends are suitable for printed wiring board substrates, flexible printed circuit boards, electrical connectors and fabricated articles requiring heat and chemical resistance. A method for extruding these articles is taught.

Abstract: High green strength curable urethane adhesive compositions of a polyol, an organic isocyanate compound, a thermoplastic polyurethane which is soluble in methyl ethyl ketone to at least 1 weight percent for imparting tack and green strength properties to the composition, and, optionally, a solvent for controlling the percent solids and viscosity of the composition.

Abstract: Thermoplastic molding materials contain, as essential components,A) from 40 to 99.5% by weight of a thermoplastic polyamide,B) from 0.5 to 15% by weight of a thermoplastic polyester elastomerand furthermoreC) from 0 to 50% by weight of fibrous or particulate fillers or a mixture of these.

Abstract: Polymer alloys having improved toughness comprise a blend of 20 to 30 weight percent of a polyamide; 15 to 30 weight percent of a rubbery polymer and 60 to 40 weight percent of a vinyl polymer containing 1 to 10 weight percent of a vinyl isocyanate monomer. Preferred isocyanate monomers are m- or p-isopropenyl-alpha, alpha dimethylbenzyl isocyanate.

Abstract: Disclosed is a coating resin composition obtained by graft-polymerizing an unsaturated carboxylic acid to a chlorinated polyolefin in a solvent, esterifying all unsaturated carboxylic acid present in the reaction system, and mixing the obtained composition with a urethane prepolymer so that the weight ratio of the solids of the composition to the solids of the urethane prepolymer is in the range of from 90/10 to 10/90. This composition has a greatly improved gasoline resistance, smell generation is controlled and the storage stability at low temperature is high. The composition is effective as a general-purpose primer showing a high adhesion to inorganic materials, polar resins, non-polar resins, metals, and other materials.