Abstract: Poly(arylene sulfide/sulfone) polymers are treated in order to increase melt stability and decrease impurities by contacting the poly(arylene sulfide/sulfone) polymer with a soluble zinc compound and an acidic solution. In one embodiment, the polymer is treated first with the soluble zinc compound, followed by treatment with the acidic solution. In another embodiment, the polymer is treated in one step with a solution comprising a water soluble zinc compound in an acidic solution.

Abstract: A composition of matter comprises trifluoromethanesulfonic acid on a solid support material which contains boron phosphate and/or boron sulfate. Preferred support materials are boron phosphate, boron phosphate-coated silica and boron sulfate-coated silica. The above composition is used as a catalyst for alkylating at least one C.sub.2 -C.sub.7 alkane (preferably isobutane or an isopentane) with at least one C.sub.2 -C.sub.7 alkene (preferably butene-2).

Abstract: Low temperature heat curable arylene sulfide copolymer compositions which are particularly suitable for use in coating applications are provided. The compositions basically comprise a first arylene sulfide copolymer having unsubstituted para- and ortho-aromatic sulfide repeating units in the polymer chain, and a second arylene sulfide copolymer having unsubstituted para-aromatic sulfide repeating units and alkyl-substituted aromatic sulfide repeating units in the polymer chain.

Abstract: Processes and compositions for improving the mechanical properties of arylene sulfide polymers used in molding processes are described. A composition comprising poly(arylene sulfide) and bi-lobal fiber selected from the group consisting of glass, carbon, rock, slag, and combinations of any two or more thereof, is disclosed as useful in the molding of articles.

Abstract: Poly(arylene sulfide/sulfone) polymers are treated in order to increase melt stability and decrease impurities by contacting the poly(arylene sulfide/sulfone) polymer with a soluble zinc compound and an acidic solution. In one embodiment, the polymer is treated first with the soluble zinc compound, followed by treatment with the acidic solution. In another embodiment, the polymer is treated in one step with a solution comprising a water soluble zinc compound in an acidic solution.

Abstract: A composition of matter comprises trifluoromethane on a solid support material which contains boron phosphate and/or boron sulfate. Preferred support materials are boron phosphate, boron phosphate-coated silica and boron sulfate-coated silica. The above composition is used as a catalyst for alkylating at least one C.sub.2 -C.sub.7 alkane (preferably isobutane or an isopentane) with at least one C.sub.2 -C.sub.7 alkene (preferably butene-2).

Abstract: Low temperature heat curable arylene sulfide copolymer compositions which are particularly suitable for use in coating applications are provided. The compositions basically comprise a first arylene sulfide copolymer having unsubstituted para- and ortho-aromatic sulfide repeating units in the polymer chain, and a second arylene sulfide copolymer having unsubstituted para-aromatic sulfide repeating units and alkyl-substituted aromatic sulfide repeating units in the polymer chain.

Abstract: The present invention relates to glass filled poly(arylene sulfide) molding compositions which upon being molded result in products having improved mechanical properties. Methods of preparing the compositions, methods of using the compositions to form molded products and the molded products so produced are also provided. The compositions are comprised of poly(arylene sulfide) resin, glass reinforcement material, an epoxysilane and an organic phosphite.

Abstract: A composition is provided which consists essentially of a blend of poly(arylene sulfide) polymers, fibrous reinforcement, a hydrotalcite, a nucleating agent, an organosilane, a mold release agent and optionally a pigment. The invention composition is particularly useful for injection molding applications.

Abstract: The present invention relates to glass filled poly(arylene sulfide) molding compositions which upon being molded result in products having improved mechanical properties. Methods of preparing the compositions, methods of using the compositions to form molded products and the molded products so produced are also provided. The compositions are comprised of poly(arylene sulfide) resin, glass reinforcement material, an epoxysilane and an organic phosphite.

Abstract: A poly(arylene sulfide) coating composition, method of preparing the composition, and method of coating are disclosed. The composition comprises a finely-divided poly(arylene sulfide) having from about 75 to about 99 mole percent para-polymerized aromatic units and from about 1 to about 25 mole percent ortho- or meta- polymerized aromatic units and, optionally, from about 0.1 to about 2 mole percent trifunctionally-polymerization aromatic units. The coating resin can be prepared in a polymerization reaction medium containing a molar excess of base, with respect to sulfur present, and can be washed with water at at least about 100.degree. C. to lower the curing temperature of the coating composition. The compositions are particularly suited for application in which curing temperatures of 350.degree. C. or lower are desired.

Abstract: Poly(arylene sulfide) compositions are disclosed having a combination of good cracking resistance and electrical insulation resistance. Such compositions have a variety of uses including uses in molded electrical components.

Abstract: A poly(arylene sulfide) composition containing a minor amount of low-density polyethylene. In applications such as poly(arylene sulfide) reinforced molding compositions, the invention composition will generally contain a poly(phenylene sulfide), a reinforcing material such as glass or carbon fibers, and from about 0.1 to about 10 weight percent, based on the weight of the composition, of an ethylene polymer having a density of from about 0.910 to about 0.940 g/cc and a melt index of greater than 100 g/10 min.

Abstract: A method for stabilizing the Tmc of PPS subjected to heat treatment in a temperature range between 240.degree. C. and 320.degree. C., particularly during the heating process of an extrusion operation, by increasing the tmperature of the polymer through the 240.degree. C.-320.degree. C. range at a rate of at least 20.degree. C. per minute or by subsequently raising the temperature of the polymer to at least 350.degree. C. for a time sufficient to stabilize the Tmc of the polymer.

Abstract: Polyphenylene oxide is blended with conjugated diene polymer by first producing a polymer mixture of polyphenylene oxide and conjugated diene polymer by solution blending and then mechanically blending the so produced masterbatch with the conjugated diene polymer.

Abstract: A thermoplastic composition comprising 30 to 90 weight percent of a block copolymer formed from a conjugated diene and a monovinylarene, 5 to 35 weight percent of an ethylene-propylene-nonconjugated diene terpolymer, and 5 to 30 weight percent of a thermoplastic polyolefin. The blend exhibits good distortion resistance, solvent resistance, high temperature retention of hardness, and ozone resistance.

Abstract: Lamination problems in polyphenylene oxide resin blends with conjugated diene-monovinylarene rubber polymers are avoided or minimized by using a linear or radial conjugated diene-monovinylarene teleblock copolymer having monovinylarene end blocks having a high heterogeneity index.

Abstract: A blend of a crosslinked ethylene-propylene-diene monomer (EPDM) and a thermoplastic elastomer. Such blends exhibit improved ozone resistance.

Abstract: Sulfur curable ethylene/alpha-monoolefin/nonconjugated diene terpolymer-unsaturated rubbery polymer blends are prepared by hot-mixing an ethylene/alpha-monoolefin/nonconjugated diene polymer, e.g., ethylene/propylene/nonconjugated diene terpolymer rubber (EPDM), e.g., ethylene/propylene/1,4-hexadiene terpolymer, preferably containing any filler to be used, with a promoter, e.g., elemental sulfur, an aromatic dinitroso compound, e.g., p-dinitrosobenzene, a quinonoid nucleus containing compound, e.g., p-quinone dioxime, etc., at about 250.degree.-450.degree. F. for about 1-15 minutes, to improve its cure rate relative to that of an elastomer with which it is to be blended, i.e., its compatibility (vulcanizate properties), and then blending the thus treated material together with an unsaturated rubbery material or elastomer, e.g., styrene/butadiene elastomer to provide products useful in producing, as by vulcanization, various rubbery products, e.g.