Process for foaming thermoplastic

Details Process for foaming thermoplastic Process for foaming thermoplastic

C - Chemistry, Metallurgy

08

J

403/57

C08J 9/10 (2006.01) C08J 9/00 (2006.01)

Patent

CA 1279949

A PROCESS FOR FOAMING THERMOPLASTICS ABSTRACT OF THE DISCLOSURE The present invention relates to an improvement in preparing foamed thermoplastic articles. It was found that a chemical blowing agent concentrate which contains a blowing agent which produces primary amines upon decomposition and additionally contains an an- hydride compound which contains at least one cyclic anhydride in its structure, offers surprising advantages over the prior art process in terms of improved impact strength and process flexibility.

536210

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