Mitsuboshi Belting Ltd.

Kenzo Tanaka

Tadao Matsuo

Shuji Mori

Itsuki Sakai

Koji Hayashi

Kosuke Mizuno

A resin molding and a method for producing the molding in which a skin material having a first solid surface layer produced by slush-molding a pulverized mixture of a polypropylene resin and a styrene series thermoplastic elastomer which are then laminated onto a surface of a resinous core by integral molding. The skin material also has at least two additional layers, i.e., a foamed middle layer and a solid inner layer.

Resin molding and production method for same

A process for producing high impact block copolyamide is described, comprising anion polymerizing .omega.-lactam in the presence of a prepolymer polymerization accelerator. The prepolymer is prepared by reacting a butadiene homopolymer and/or butadiene-acrylonitrile copolymer containing hydroxyl groups at the terminals thereof with polymethylene polyphenylene isocyanate or tolylene diisocyanate at an equivalent ratio of isocyanate group to hydroxyl group (NCO/OH) of 1:1 or more. With the thus-produced high impact block copolyamide, impact strength is greatly improved, and bleeding of polybutadiene is not observed.

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Akashi, Japan

Kenzo Tanaka