Abstract: It is highly desirable for tire treads to exhibit good traction characteristics such as good wet skid resistance. However, it has traditionally been very difficult to improve the traction characteristics of a tire without sacrificing rolling resistance and tread wear. The high performance segmented elastomers of this invention offer a unique combination of desirable characteristics for utilization in making tire tread compositions. For instance, the rubbery polymers of this invention can be made into tire treads which exhibit outstanding traction characteristics while maintaining good rolling resistance and tread durability.

Abstract: Disclosed are moldable polyblends comprising a polyvinyl chloride resin blended with a copolymer of an unsaturated dicarboxylic acid moiety and a monomer copolymerizable therewith and an interfacial modifier to form a blend having improved mechanical and physical properties. The dicarboxylic acid copolymer may be with or without rubber modifiers.

Abstract: An adhesive which contains a tackifying resin and a branched three-armed block copolymer composition comprised of polymeric blocks wherein the molecular weight is from about 180,000 to about 250,000, the polystyrene content is from about 17 to about 23% by weight of the block copolymer composition and the percentage of S-I arms which are load bearing is greater than about 85%.

Abstract: A method for dispersing a second polymer within a first polymer is disclosed, the polymers being mutually miscible and when blended exhibit lower critical solution temperature (LCST) type behavior. The first and second polymers are blended together at a temperature for easy processing and then phase separated at a temperature above the LCST of the blended polymer pair. The phase separated polymers are then cooled to a temperature wherein the polymer pair become fixed in the phase separated state.

Abstract: A novel thermoplastic resin polymer comprising a polyphenylene ether (POE) and a low molecular weight styrene polymer bonded to the PPE in an amount of from 0.1 to 5.0% by weight based on the PPE has been found to have excellent moldability and thermal stability properties, while maintaining the excellent properties inherent in PPE, such as transparency and heat resistance. The resin polymer can be prepared from a polyphenylene ether and a styrene monomer by polymerization in the absence of a radical polymerization initiator. When the novel thermoplastic resin polymer and a styrene polymer are blended into a composition, the composition is particularly excellent in physical properties, such as moldability, color tone, impact resistance, elongation and surface gloss.

Abstract: Aqueous application systems for applying additives to polymeric particles, methods of preparing aqueous emulsions which include at least one processing, stabilizing or other functional polymer additive and an emulsifiable wax. Also disclosed are methods of applying additives to polymeric particles and to polymeric particles treated by such methods.

Abstract: The odor of blends of polyphenylene ether resin, alone, or in combination with a polystyrene resin or a high impact polystyrene is improved by including a carboxylic acid, and acid anhydride or mixture thereof in the compositions.

Abstract: A first reactor is used to graft polystyrene to a rubber-like polymer. A second reactor is used to obtain a mixture of styrene and polystyrene. The effluent from both the first and the second reactors are fed into a quiescent reaction zone where phase inversion occurs. The phase inverted material is fed into post inversion reactors to substantially complete the polymerization of the styrene monomer, and any unreacted styrene monomer is driven off to form the improved high-impact polystyrene.

Abstract: The invention relates to a resin composition comprising a polyphenylene ether (or blend thereof with a styrene resin), a styrene elastomer, an ethylene-unsaturated carboxylate copolymer modified with an unsaturated dicarboxylic acid or derivative thereof and having a number-average molecular weight above 10,000, and an ethylene-(meth)acrylate copolymer having a number-average molecular weight of 1,500 to 9,000. This composition provides improved processing and moldability, also, molded objects therefrom have improved low temperature impact strength and freedom from delamination.

Abstract: This invention provides a normally tacky pressure-sensitive adhesive composition comprising (1) a radial teleblock copolymer having at least three monoalkenyl arene polymer blocks and a branched elastomeric conjugated diene polymer block, (2) a tackifying resin, and (3) from about 5 to about 20 parts by weight extending oil per 100 parts by weight of radial copolymer. The copolymer preferably has a molecular weight of about 180,000 to about 250,000, as expressed in polystyrene equivalent molecular weight units. The monoalkenyl arene polymer blocks preferably comprise from about 17% to about 23% by weight of the total molecular weight of the copolymer. The preferred polymer for the monoalkenyl arene block is polystyrene; the preferred polymer for the elastomeric conjugated diene block is polyisoprene.

Abstract: A high nitrile thermoplastic resin composition having fluorinated/chlorinated hydrocarbon resistance and comprising a specifically defined graft copolymer obtained by polymerizing a vinyl cyanide compound and an aromatic vinyl compound in the presence of a conjugated diene-based synthetic rubber, or a blend of it and a vinyl cyanide compound/aromatic vinyl compound copolymer, and its use as a fluorinated/chlorinated hydrocarbon-resistant internal box of a refrigerator.

Abstract: A resin composition for primer use is described, which contains a copolymer of (I) a radical-polymerizable olefin resin and (c) a monomer copolymerizable with said olefin resin (I) and containing an alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer as essential ingredients, said radical-polymerizable olefin resin (I) being a product of the reaction of (a) an olefin resin having at least one functional group per molecule with (b) a radical-polymerizable monomer having a functional group reactive to the functional group contained in said olefin resin (a).A primer composition is also described.

Abstract: Thermoplastic molding materials containA) not less than 5% by weight of a polymer component consisting of from 50 to 100% by weight of polyphenylene ethers and from 0 to 50% by weight of a styrene polymer differing from component C),B) not less than 5% by weight of a polyester,C) not less than 0.1% by weight of a copolymer consisting ofC.sub.1) not less than 20% by weight of .alpha.-olefins of 2 to 8 carbon atoms, styrene or substituted styrenes of the general formula I ##STR1## where R and R.sup.1 is alkyl of 1 to 8 carbon atoms, hydrogen and/or halogen and n is 0, 1 or 2, or a mixture of these monomers,C.sub.2) not less than 0.5% by weight of a polymerizable monomer containing epoxide groups, and/orC.sub.3) not less than 0.05% by weight of a halobenzyl-containing polymerizable monomer having the structural unit (II) ##STR2## where X is halogen and R.sup.2 and R.sup.3 are each alkyl of 1 to 8 carbon atoms or hydrogen and n is 1, 2 or 3, and/orC.sub.4) not less than 0.

Abstract: Disclosed herein are a hydrogenated vinyl aromatic hydrocarbon polymer composition comprising:(a) 5-90% by weight of a hydrogenated vinyl aromatic hydrocarbon-conjugated diene block copolymer obtained by hydrogenating the substantially whole double bonds derived for the conjugated diene bonds and not less than 60 mol % and less than 80 mol % of an aromatic-ring, the content of the conjugated diene polymer segments in said block copolymer being 1-50 wt %; and(b) 10-95% by weight of a hydrogenated vinyl aromatic hydrocarbon polymer obtained by hydrogenating not less than 60 mol % and less than 80 mol % of an aromatic-ring, and an optical disc substrate molded therefrom.

Abstract: There is here provided a thermoplastic resin composition which comprises (I) 50 to 99% by weight of a polyamide resin, and (II) 50 to 1% by weight of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of at least one ethylene copolymer selected from the group consisting of epoxy group-containing ethylene copolymers, ethylene-unsaturated carboxylic acids, alkyl ester copolymers and metallic salts of the ethylene-unsaturated carboxylic acids, and ethylene-vinyl ester copolymers, and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one vinyl monomer, either of both the components possessing a dispersion phase where each particle has a diameter of 0.001 to 10 .mu.m. A method for preparing the above-mentioned thermoplastic resin composition is also provided here.

Abstract: A thermosetting resin composition comprising(A) 60 to 95% by weight of a prepolymer or precopolymer selected from the group consisting of (A-1), (A-2) and (A-3) below,(A-1) a prepolymer of diallyl phthalate,(A-2) a precopolymer of diallyl terephthalate derived from diallyl terephthalate of the following formula (1) ##STR1## and an aromatic benzyl hydrocarbon having at least one hydrogen atom at the benzyl position and represented by the following formula (2) ##STR2## wherein each of R.sup.1 and R.sup.2 represents a member selected from the class consisting of a hydrogen atom and lower alkyl groups, and n is an integer of 1 to 3, and(A-3) a mixture of (A-1) and (A-2), and(B) 40 to 5% by weight of a polyacrylate or polymethacrylate of dipentaerythritol having at least 4 acryloyl or methacryloyl groups in the molecule and represented by the following formula ##STR3## wherein each R.sup.3 represents a hydrogen atom, --COCH.dbd.CH.sub.2 or ##STR4## and at least four R.sup.3 groups represent --COCH.dbd.CH.sub.

Abstract: Covulcanizable compositions comprising (A) 55-100% by weight of an elastomeric copolymer of vinylidene fluoride with perfluoropropene optionally tetrafluoroethylene and containing from 0.001 to 2% by weight of bromine; (B) 0-45% by weight of a tetrafluoroethylene and propylene copolymer; (C) 0.7-2.5 parts for 100 parts of mix (A)+(B) of a bisphenol compound; (D) 0.3-1.5 parts for 100 parts of mix (A)+(B) of an organic guaternary compound of ammonium, phosphonium or aminophosphonium; (E) 0.4-5 parts for 100 parts of mix (A)+(B) of an organic peroxide; (F) 1-5% by weight of (A)+(B) of a peroxide cross-linking coagent.

Abstract: A thermoplastic resin composition comprises a polyphenylene ether having a reduced viscosity within the range of 0.30 dl/g or more and less than 0.45 dl/g, an aliphatic polyamide, a specified compatibilizing agent, and a rubber material. The composition has a high in heat distortion temperature and is superior in processability.

Abstract: Described herein are miscible blends of a poly(aryl ether ketone) and an imide-containing polymer which are useful in the manufacture of extruded film, continuous fiber composites and injection molded articles.

Abstract: Compositions which cure by UV radiation in less than one second are obtained by mixing an alkenyl containing polydiorganosiloxane, a mercapto functional crosslinker of the mercapto functional polyorganosiloxane or mercapto organic compounds, a photosensitizer, a viscosity stabilizer, and optionally a reinforcing agent. These compositions can be packaged in one container and can be used as the primary coating for optical fibers.