Process for the production of heat resistant thermoplastic...

Details Process for the production of heat resistant thermoplastic... Process for the production of heat resistant thermoplastic...

C - Chemistry, Metallurgy

08

F

402/518

C08F 8/48 (2006.01)

Patent

CA 1304880

Abstract: The invention relates to a process for the production of a thermoplastic copolymer having good heat distortion resistance. The process comprises heat-treating a raw copolymer comprising a vinyl monomer unit (including a methacrylic and/or acrylic acid unit) in the presence of a basic compound as a specific ring-closing promoter. The methacrylic and/or acrylic acid unit is thereby converted to a six-membered cyclic anhydride unit. The copolymer has good heat distortion resistance, transparency, mechanical properties and processability, and can give formed product without splashed on the surface, and is useful for the production of various parts, such as automobile parts, electrical parts, industrial parts, and miscellaneous goods.

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