Asahi Kasei Kogyo Kabushiki Kaisha

Shiraishi Central Laboratories Co., Ltd.

Yonemasa Furusawa

Koichi Matsumoto

Itsuho Aishima

Junji Seki

Ryogo Tsukisaka

Yuhachi Takahashi

A composition comprising a thermoplastic resin and an activated mineral filler, said mineral filler consisting of particles of at least one aluminosilicate-type mineral containing alakali metal ions as cations in its crystal structure, the surfaces of said particles being covered monomolecularly with at least one ethylenically unsaturated organic acid, having 10 or less carbon atoms, which is bonded to the metal ions on the surfaces of said particles and retains ethylenic double bonds unreacted. On being mixed under application of heat to cause reaction, this composition gives a molded article excellent in compatibility and physical properties such as stiffness, toughness, ductility, fatigue properties, water resistance, transparency, etc.

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Amagasaki, Japan

Yonemasa Furusawa