General Electric Company

Jean M Heuschen

Jan Bussink

Willem L Sederel

Gim F Lee

Roelof F Van Der Meer

Petrus C Van Abeelen

Petrus C Abeelen

Reinforced thermoplastic compositions comprised of compatible combinations of a polyphenylene ether resin, polyamide resin, and glass fibers can be impact modified with a modifying agent comprising a partially hydrogenated diblock copolymer of styrene and ethylene/propylene which result in molding compositions having improved thermal aging characteristics.

Impact modified polyphenylene ether-polyamide compositions

High impact, high modulus thermoplastic molding compositions comprise

High impact, high modulus fiber reinforced polymers

High impact, high modulus thermoplastic molding compositions comprising:

High impact, high modulus fiber reinforced linear polyester

A polymer mixture comprising polyvinyl chloride, an aromatic polycarbonate and a rubber like polymer, characterized in that the rubber like polymer is a graft copolymer which is built up from a rubber like main chain with predominantly alkyl acrylate units on which styrene, .alpha.-methylstyrene, acrylonitrile, methacrylic acid esters, acrylic acid esters or mixtures thereof have been grafted.

Composition and process

A method of preparing a polymer mixture comprising polyvinyl chloride, an aromatic polycarbonate and a rubber like polymeric, characterized in that first a premixture comprising 60-90% by weight of aromatic polycarbonate and 10-40% by weight of rubber like polymer is prepared by mixing at a temperature above about 220.degree. C., after which the resulting premixture is cooled to a temperature below about 220.degree. C. and is mixed with the polyvinyl chloride.

Process of preparing a polymer mixture comprising polyvinyl chloride, a

There are provided compositions comprising (a) a selectively hydrogenated elastomeric block copolymer, (b) a polycarbonate and (c) an amorphous polyester. The use of the combination of (a) and (c) provides remarkable improvements in the melt flow characteristics, in resistance to brittle failure, and in the resistance to environmental stress crazing and cracking of the polycarbonate resin component (b).

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Halsteren, Netherlands

Jean M Heuschen