Abstract: An improved stabilizer concentrate for use in stabilizing polymeric blend compositions which comprise a thermally sensitive interpolymer. The stabilizer concentrate comprises a carrier resin, and a stabilizing agent capable of stabilizing a thermally sensitive interpolymer. The improvement comprises employing a carrier resin having a viscosity such that the stabilizer concentrate has a viscosity of less than 60 percent of the viscosity of the polymeric blend composition.

Abstract: Novel modified polyphenylene ether-polyamide compositions comprising polyphenylene ether, polyamide and a polycarboxylic acid and the reaction product thereof and an improved process for preparing the same.

Abstract: Partially grafted flexible thermoplastic compositions formed by melt blending under high shear, a thermoplastic material which does not contain available graft sites, said thermoplastic material being at least one continuous phase of the composition, an ethylene copolymer containing an unsaturated mono-carboxylic acid, and a polymeric grafting agent having reactive groups capable of reacting with the mono-carboxylic acid in the ethylene copolymer and with the available graft sites in the thermoplastic material.

Abstract: The present invention relates to ternary polymer blends containing (a) a polyetherimide, (b) a rubber modified vinyl aromatic polymer, and (c) a polyphthalate carbonate. The blends have excellent high temperature properties, improved impact resistance values and have excellent flexural values.

Abstract: Novel moisture resistant polyamide compositions are prepared comprising at least one polyamide and at least one di- or poly- hydric compound, oligomer or polymer free of sterically hindered hydroxy groups.

Abstract: This invention relates to a new and improved resin composition containing polyphenylene ether and, more particularly, to a molding resin composition including polyphenylene ether and cyclopentadiene resin containing a polar group.The new and improved resin composition has good melting flowability and retains good mechanical and thermal characteristics inherent to polyphenylene ether and can be suitably used as a molding material.

Abstract: Disclosed herein is a resin composition comprising(a) an aromatic polyester,(b) an aromatic polycarbonate and(c) a reaction product of an .alpha.-olefin having a molecular weight of 40 to 2,000 and an unsaturated carboxylic acid or a derivative thereof, the content of said unsaturated carboxylic acid or said derivative thereof in said reaction product being 5 to 70 wt %.The resin composition according to the present is suitable as electric and electronic parts, automotive parts and other industrial materials.

Abstract: A plasto-elastomeric composition is described comprising thermoplastic olefinic resins and EPDM elastomers wherein the elastomeric phase is fully or partially crosslinked by means of an aromatic carboxylic acid and a non-halogenated phenolic resin.

Abstract: Composite parts of firmly bonded molding materials, comprising a thermoplastic material containing polyphenylene ether, a layer of SBR or SBS rubber or a mixture thereof surrounding the thermoplastic material, if necessary, an intermediate layer comprising a powdered SBR rubber which may contain a filler, and a rubber containing carbon-carbon double bonds covulcanized with the layer of SBR or SBS rubber. The invention also provides a method for producing the composite part comprising treating the thermoplastic material with a solution of a SBR or SBS rubber in an organic solvent or with an aqueous latex of the rubber, if necessary, completely or partially removing the organic solvent or water, if necessary, treating the dried mass with a powdered SBR rubber which may contain a filler, and covulcanizing with a rubber containing carbon-carbon double bonds.

Abstract: A vulcanizable rubber composition comprising (1) 100 parts by weight of a polymer composition comprising(I) a vinylidene fluoride resin,(II) at least one rubber selected from the group consisting of acrylic rubbers, .alpha.,.beta.-unsaturated nitrile-conjugated diene copolymer rubbers and hydrides of .alpha.,.beta.-unsaturated nitrile-conjugated diene copolymer rubbers, said acrylic rubber consisting of (A) 30 to 99.9% by weight of an alkyl acrylate and/or an alkoxy-substituted alkyl acrylate, (B) 0.1 to 10% by weight of a crosslinkable monomer and (C) 0 to 70% by weight of another ethylenically unsaturated compound copolymerizable with (A) and (B) (the sum of (A), (B) and (C) is 100% by weight) and said .alpha.,.beta.-unsaturated nitrile-conjugated diene copolymer rubber consisting of (D) 10 to 60% by weight of an .alpha.,.beta.

Abstract: A sonic window suitable for use in sonar applications wherein an elastomer such as natural or synthetic natural rubbers, a low air entrapping fiber or fibril used for reinforcement, fillers, and thermosetting resins are formed into desired window configuration. The low air entrapment associated with the fiber or fibrils produces a remarkably sonicly transparent window.

Abstract: This invention relates to a thermoplastic formulation having a first part comprising, (i) nylon 6,6 nylon 6 or a mixture thereof and (ii) a halogenated polyphenylene ether flame retardant, and a second part, in admixture with the first part, comprising a Diels-Alder adduct having the formulaA--R--(A).sub.nwherein n is 0, 1 or 2 and A is a polyhalogenated cycloalkylene or cycloalkyl group and R is as defined herein.

Abstract: The invention relates to component parts comprised of at least two alternating layers comprising a polyphenylene ether-containing (PPE-containing) molded piece and an elastomeric thermoplastic block copolymer of the type A-B-A, wherewith A represents a styrene block and B a soft phase block; and a method of manufacturing the same.

Abstract: Composition and films of linear ethylene polymers such as linear low density polyethylene containing up to about 3 weight percent of a blend of polyphenylene oxide and styrene resin exhibit excellent physical properties particularly impact strength.

Abstract: Shaped articles are made from blends of rubber and plastic in which the rubber is in the form of discrete vulcanized particles dispersed in the plastic. After shaping the articles, they are exposed to free-radical crosslinking which converts the blends from thermoplastics to thermosets.

Abstract: Into a material based on a caoutchouc-type or caoutchouc-containing mixture for producing hard rubber, there is incorporated a pre-mix containing high-strength organic fibers and a liquid hardenable plastic material. The high-strength and temperature resistant material thus obtained is particularly suitable for the attenuation of noise in combustion engines when heavy-weight fillers are also added to such material. Engine components like, for example, valve covers, timing gear covers and oil pans can be manufactured from this material.

Abstract: Polyphenylene ether compositions comprising a polyphenylene ether, an alkenylaromatic polymer, a rubber substance, a polyethylene or ethylenic copolymer, and a mineral oil. These polyphenylene compositions are excellent in the balance among fluidity, impact resistance and gloss.

Abstract: The invention relates to a vulcanizable composition containing a partially hydrogenated nitrile polymer and a resin vulcanization system.

Abstract: Into a material based on a caoutchouc-type or caoutchouc-containing mixture for producing hard rubber, there is incorporated a pre-mix containing high-strength organic fibers and a liquid hardenable plastic material. The high-strength and temperature resistant material thus obtained is particularly suitable for the attenuation of noise in combustion engines when heavy-weight fillers are also added to such material. Engine components like, for example, valve covers, timing gear covers and oil pans can be manufactured from this material.

Abstract: Miscible blends of solids, non-crosslinked polymers are disclosed. The blends comprise from 2 to 95 parts by weight of a water-insoluble, hydrophobic polymer and, correspondingly from 98 to 5 parts by weight of a hydrophilic polymer. The blends are capable of absorbing at least their own weight in water.

Abstract: Thermoplastic polyarylate compositions having improved flame retardancy consisting essentially of polyacrylate, epoxy-containing polymer, brominated polystyrene and sodium antimonate.

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 10 to 89% by weight of a blend of(A.sub.1) from 20 to 98% by weight, based on (A.sub.1)+(A.sub.2), of a polyester of an aromatic dicarboxylic acid and an aliphatic dihydroxy compound and(A.sub.2) from 2 to 80% by weight, based on (A.sub.1)+(A.sub.2), of a polyester of an aromatic dicarboxylic acid and an aromatic dihydroxy compound of the formula I ##STR1## or its C.sub.1 -C.sub.6 -alkyl or halogen derivative substituted in the nucleus, where Z is an alkylene or cycloalkylene group of not more than 8 carbon atoms, an arylene group of not more than 12 carbon atoms, --O--, --S--, ##STR2## or a chemical bond and m is 0 or 1, (B) from 10 to 89% by weight of a polycarbonate and(C) from 1 to 30% by weight of a rubber toughener having a glass transition temperature of less than -30.degree. C.

Abstract: A high solids coating composition comprises a low molecular weight polymeric blend of acrylic polymer, polyester polymer, and amine cross-linking resin. The acrylic and polyester polymers contain primary hydroxyl groups adapted to coreact and cross-link with active amine cross-linking resin such as aminoplast resins. All of the polymers have a number average molecular weight below about 3000.

Abstract: Resinous compositions having excellent impact resistance are obtained by initially blending at least one polyphenylene ether or a blend thereof with at least one polystyrene, a functionalizing compound such as maleic anhydride or fumaric acid and an unfunctionalized elastomeric olefin copolymer such as an EPDM, and subsequently blending the resulting product with at least one polyamide.

Abstract: Thermoplastic, flame-resistant copolymers comprised of an alkenyl aromatic compound, a bromine-substituted alkenyl aromatic compound, an .alpha.,.beta.-unsaturated monocarboxylic acid and a diene rubber are described. The copolymers are prepared by polymerizing the comonomers in solution. The copolymers are admixable with other materials, both polymeric and non-polymeric, and the resulting compositions can be molded into articles of various shapes and sizes which exhibit improved paint adhesion.

Abstract: A thermoplastic resin composition, which comprises (a) from 5 to 85 parts by weight of a melted or remelted preliminary molding compound consisting of from 60 to 98 parts by weight of polyphenylene ethers, 40 to 2 parts by weight of polyoctylenes, from 0.1 to 5 parts by weight of maleic anhydride and from 0.1 to 5 parts by weight of a further acid derivative which has a melting point below 100.degree. C. and which is selected from the group consisting of an unsaturated mono- or dicarboxylic acid having up to 14 carbon atoms, an anhydride thereof, which excludes maleic anhydride, and an ester of mono- or dicarboxylic acid with an alcohol of up to 6 carbon atoms; and (b) from 95 to 15 parts by weight of an aliphatic homopolyamide or a copolyamide containing a preponderant amount of aliphatic monomer units.

Abstract: A phenolic compound having improved retention of useful properties over long periods of time at elevated temperatures is presented. The novel phenolic compound, preferably a glass reinforced phenol-formaldehyde with mineral fillers has incorporated therein elastomers which primarily undergo crosslinking on oxidative aging, such as butadiene based rubbers, and/or molecular sulfur or sulfur donor components. These additives unexpectedly retard thermal degradation with time of aging and provide exceptionally good retention of weight, molded dimensions and mechanical properties.

Abstract: A rubber composition for an inner liner of a vehicular tire, high in stickiness before vulcanization and in adhesive strength after vulcanization and having good low temperature characteristics so as to effectively suppress crack formation in the inner liner. The rubber composition comprises a rubber component including halogenated butyl rubber ranging from 60 to 100 parts by weight, and diene rubber not more than 40 parts by weight. Tert-butylphenolacetylene resin is blended in a range from 0.5 to 10 parts by weight with 100 parts by weight of the rubber component.

Abstract: A high solids coating composition comprises a low molecular weight polymeric blend of acrylic polymer, polyester polymer, and amine cross-linking resin. The acrylic and polyester polymers contain primary hydroxyl groups adapted to coreact and cross-link with active amine cross-linking resin such as aminoplast resins. All of the polymers have a number average molecular weight below about 3000.

Abstract: Disclosed is a high-performance tire in which a bead filler formed of a rubber composition fills up a space between each turn-up portion of the carcass and a major portion of the carcass and extends to some extent along the carcass toward the tread. The rubber composition is anisotropic such that the elastic modulus in the direction circumferential of the tire is distinctly higher than in the direction radial of the tire. Such anisotropy can be produced by incorporating short fiber of a suitable thermoplastic polymer such as nylon into the rubber composition. This tire provides both improved controllability and a good ride.

Abstract: Plasto-elastomeric compositions with improved processability and high elasto-mechanical properties, consisting of mixes of a cross-linked EPDM rubber and a thermoplastic olefinic polymer, are prepared by the dynamic vulcanization method, using as cross-linking agent for the rubbery component a system comprising a non-halogenated phenolic resin, zinc oxide and p-toluenesulfonic acid.

Abstract: Polyestercarbonate compositions having superior environmental stress crack resistance are obtained by blending with up to about 12 weight percent of a polymer of 4-methyl-1-pentene.

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: A reinforced rubber mixture composed of (A) at least one natural, styrene/butadiene, polybutadiene, polyisoprene, transpolyoctenylene, ethylene/propylene/diene terpolymer and butyl rubber, (B) at least one phenol novolak resin and/or reactive polyphenol, (C) curing agents and, if appropriate, (D) customary additives, wherein the rubber mixture contains, as an additional component (E), at least one polar, chlorine-free rubber in the form of nitrile rubber having a nitrile content of at least 32% or polyurethane rubber in a proportion by weight of 1 to 49% by weight, relative to the total amount of rubber. Process for the preparation thereof and the use of the reinforced rubber mixtures for the production of industrial rubber goods, in particular for the production of antivibration units, rubber sleeves, coatings, conveyor belts and tires.

Abstract: A molding composition containing a compatible blend of (i) a polycarbonate having repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS), optionally a dihydric phenol such as 2,2-bis(4-hydroxyphenyl)propane (Bisphenol A) and a carbonate precursor, and (ii) a vinyl chloride derived polymer.

Abstract: Moulding compounds consisting of a mixture of (A) from 99.99 to 60 parts, by weight, of a polyoxymethylene; (B) from 0 to 40 parts, by weight, of an elastomer having a softening temperature below the crystallite melting point of polyoxymethylene (A) and a freezing point below 0.degree. C.; and (C) from 0.01 to 40 parts, by weight, of an aliphatic, rubber-like, high molecular weight adipate-carbonate mixed ester.

Abstract: A matte film made of a composition comprising (a) from 3 to 20 parts by weight of a polyarylate resin made of terephthalic acid, isophthalic acid (the molar ratio of the terephthalic acid group to the isophthalic acid group being from 9:1 to 1:9) and a bivalent phenolic compound, (b) from 60 to 94 parts by weight of a linear polyester resin and (c) from 3 to 30 parts by weight of a styrene resin or an acrylic resin, and satisfying the following condition:A-10.ltoreq.S.ltoreq.A+15where A is the parts by weight of the polyarylate resin and S is the parts by weight of the styrene resin or acrylic resin, and said film being stretched at least 1.5 times in at least one direction.

Abstract: A method of making and composition for a co-continuous dispersion of incompatible polymers in a polymer matrix comprises forming a solution of the incompatible polymers in a solvent which is common to both polymers and rapidly evaporating the solvent. The remaining material is in the form of the polymer matrix.

Abstract: Moulding compositions based on polyalkylene terephthalate, polycarbonate, polymer and fluorinated polyolefin have higher Vicat-softening temperature if the polymer and the fluorinated polyolefin are precipitated together from a mixture of the dispersions of both components.

Abstract: A composition comprisinga. a major amount of an aromatic polycarbonate;b. a minor quantity of a polyester selected from polyalkylene terephthalate and polycycloalkylene terephthalate, isophthalate or a mixture of the two acids;c. a minor quantity of an elastomeric acrylate copolymer with a second order transition temperature, Tg, of less than -10.degree. C. and phenoxy resin effective to significantly maintain the impact strength and ductility at break after exposing a stressed part to brake fluid comprising alcohols and ethers.

Abstract: Resinous composition exhibiting improved impact strength consisting essentially of, in physical admixture:(i) a blend containing(a) at least one aromatic carbonate polymer, and(b) at least one amorphous copolyester resin; and(ii) an amount at least effective to improve the impact strength of said blend of at least one olefin diene terpolymer.

Abstract: A polyphenylene ether resin composition containing (A) a polyphenylene ether resin, (B) an aromatic polyester resin, and (C) a phenoxy resin. The resin composition may further contain (D) an unsaturated carboxylic acid or (E) a vinyl copolymer derived from a styrene compound and an alpha,beta-unsaturated dicarboxylic acid anhydride as comonomer components. The resin composition has excellent mechanical strength, solvent resistance, oil resistance and moldability.

Abstract: A multilayer composition comprising an outer layer of aromatic polycarbonate, an outer layer of a polymer prepared from an olefinic monomer, said outer layers tied together with a layer comprising an admixture of an olefin acrylate polymer and poly-(4-methylpentene-1), the olefin acrylate and poly-(4-methylpentene-1) in such quantities that the adhesive strength and clarity of the tie layer is not significantly reduced after exposure to hydrolytic conditions at elevated temperatures.

Abstract: A composition comprising a major amount of an aromatic polycarbonate and quantities of both an acrylate elastomeric copolymer with a second order transition temperature, Tg, of less than -10.degree. C. and a phenoxy resin effective to substantially maintain the impact strength and ductility at break after exposing a stressed part to brake fluid comprising alcohols and ethers.

Abstract: A composition comprisinga. a major amount of an aromatic polycarbonate;b. a minor amount of an impact modified comprising(i) an amorphous polyester comprising units derived from 1,4-cyclohexane dimethanol and aromatic dicarboxylic acid or ester forming derivative; and(ii) an olefin acrylate polymeric resin;the components (i) and (ii) in such quantities that said composition has the following properties(a) thick section notched Izod impact resistance better than a,(b) compatibility as measured by Izod impact resistance of a part made from a double gated mold better than that for a+b (i) or a+b (ii); and(c) better resistance against basic organic solution as measured by notched Izod in thin section than a+b (i); and(d) a flexural property and heat strength improving quantity of glass fiber which additionally maintains the ductility of (a) and (b) under notched Izod impact testing before and after aging in a basic organic solution.

Abstract: A process for producing a reinforced rubber composition comprising the steps of:dispersing fine fibers of thermoplastic polymer having ##STR1## groups in a continuous phase comprising vulcanizable synthetic rubber, other than butadiene rubber, containing a tackifier incorporated thereinto; andgrafting the vulcanizable synthetic rubber onto the thermoplastic polymer at the interface of the fine fibers through a novolak type phenol resin.This reinforced rubber composition is capable of providing a vulcanizate having an excellent strength and modulus.

Abstract: A polyolefin composition comprising 100 parts by weight of polyolefin, not less than 0.5 part by weight of a polyamide selected from the group consisting of nylon 6 and nylon 66, and from 3 to 30 percent by weight of novolak based on the weight of the polyamide; and a method of making polyolefin molded articles having surface improved in secondary processable property, which is characterized by treating the surface of molded articles of the polyolefin composition with a solution comprising: (a) not less than 2 percent by weight of a monomer having at least one carbon-carbon double bond and a glycidyl group, (b) 1 to 5 percent by weight of chlorinated polyolefin, and (c) not more than 97 percent by weight of a mixed solvent of 30 to 70 percent by weight of terpenic solvent and 70 to 30 percent by weight of aromatic or chlorinated hydrocarbon solvent.

Abstract: Described herein are blends comprising a polyarylate and a poly(ester carbonate). These blends have improved light transmission, lower haze, and good mechanical properties.

Abstract: An adhesive for adhering fibrous materials, particularly polyester fibrous material to rubber is disclosed, which comprises polyhydric phenol-polysulfides, resorcin excess resorcin-formaldehyde condensates, and RFL solution composed of resorcin-formaldehyde condensate and rubber latex.

Abstract: A method of making and composition for a fine particle dispersion of incompatible polymers in a polymer matrix comprises forming a solution of the incompatible polymers in a solvent which is common to both polymers and rapidly evaporating the solvent. The remaining material is in the form of the polymer matrix.