Abstract: A composition comprising a polyetherester resin reinforced with aromatic polyamide fibers, exhibits good adhesion between the polyetherester resin and the aromatic polyamide fibers and could be used in automotive or other high strength applications.

Abstract: A method for making improved surface profile composite structures containing crystalline thermoplastic materials involves employing individual glass filaments and molding with a hot mold insert. The method provides composites having smooth surfaces suitable for automotive applications.

Abstract: Disclosed are blends of (a) a polyetherimide and (b) a (meth) acrylate-styrene-acrylonitile polymer (ASA). The blends exhibit an improved heat distortion temperature flexural properties and tensile properties over the ASA component alone and have lower impact strengths than that associated with the ASA polymer alone.

Abstract: A method for thermostamping thermoplastic composites involves the steps of (a) convection heating of the composite to the glass transition temperature of the thermoplastic; (b) radio frequency heating of the composite from the glass transition temperature of the thermoplastic to the desired stamping temperature; and (c) stamping of the composite into the desired shaped article. The method provides for improved temperature uniformity throughout the composite prior to stamping thereof resulting in more uniform parts.

Abstract: Disclosed are blends comprising from about 40 to 70 wt. % of a polyetherimide and the remainder one or more polyamides. The blends generally have a tensile strength which is greater than the tensile strength of polyetherimide-polyamide blends which do not contain from about 40 to 70% polyetherimide, while still retaining a good combination of other physical properties such as heat distortion characteristics and impact strength. In addition, the blends of the invention may have a flexural strength which is greater than that of other polyetherimide-polyamide blends which do not contain from about 40 to 70% polyetherimide.

Abstract: Fiber reinforced thermoplastic articles having an improved surface are produced in a stampable sheet which is produced from a reinforcing fiber mat having a thermoplastic support film.

Abstract: There is disclosed herein a reinforced multilayer thermoplastic resin composite blank having radio frequency sensitive material contained in at least one layer and a method of using radio frequency heating to manufacture a composite part with at least one surface having a smooth defect-free surface finish.

Abstract: A multilayer composition comprising at least one polycarbonate layer, at least one polyolefin layer, and at least one olefin vinyl alcohol layer, said layers being adhered together by means of tie layers containing a tie material selected from modified polyolefin graft copolymers and olefin vinyl ester copolymers.

Abstract: Polyamide-polyetherimide blends containing from 5% to 39% by weight of polyetherimide have been found to have improved mold shrinkage and water absorption characteristics.

Abstract: A multilayer composition comprising at least one polycarbonate layer, at least one polyolefin layer, and at least one olefin vinyl alcohol layer, said layers being adhered together by means of tie layers containing a tie material selected from modified polyolefin graft copolymers and olefin vinyl ester copolymers.

Abstract: Thermoplastic molding compositions which comprise (a) a poly(C.sub.2-6 alkylene terephthalate) resin and a major proportion of (b) an aromatic polycarbonate resin with (c) a polyolefin resin or an olefin copolymer, provide molded articles of improved impact resistance. In preferred embodiments, articles molded from the compositions possess improved impact resistance, lower specific gravity, good tensile strength, and improved resistance to distortion at elevated temperatures under load.

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: A multilayer composition comprising at least one polycarbonate layer, at least one polyolefin layer, and at least one olefin vinyl alcohol layer, said layers being adhered together by means of tie layers containing a tie material selected from modified polyolefin graft copolymers and olefin vinyl ester copolymers.

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: Polycarbonate composition comprising, in physical admixture:(i) from about 10 to about 96 weight percent high molecular weight aromatic thermoplastic polycarbonate resin;(ii) from about 2 to about 35 weight percent of a olefin vinyl alcohol copolymer; and(iii) either from about 2 to about 35 weight percent of an olefin vinyl ester copolymer or from about 2 to about 90 weight percent of a polyolefin resin.

Abstract: This invention is concerned with polyetherimide blends. More particularly the polyetherimide blend comprises a polyetherimide and a block copolymer of a vinyl aromatic hydrocarbon and a diene hydrocarbon, and a polyester to form a ternary blend.

Abstract: Polycarbonate composition comprising, in physical admixture:(i) from about 10 to about 96 weight percent of at least one high molecular weight thermoplastic aromatic polycarbonate resin;(ii) from about 2 to about 35 weight percent of at least one olefin vinyl ester copolymer; and(iii) from about 2 to about 35 weight percent of at least one olefin vinyl alcohol copolymer or from about 2 to about 90 weight percent of at least one polyolefin.

Abstract: There is provided a ternary component thermoplastic composition offering an improved combination of impact and flexural properties comprising an acrylate-styrene-acrylonitrile terpolymer resin, a poly (methyl methacrylate) resin, and a polycarbonate resin.

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.