Styrene copolymers, polystyrene compositions, processes for...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 212/08 (2006.01) C08L 25/08 (2006.01)

Patent

CA 2115587

Abstract of the disclosure Disclosed are a styrene copolymer having a weight average molecular weight of about 200,000 to 2,000,000, having 1 to 20 branching points in the Z- average molecular weight, and having a methyl ethyl ketone/methanol mixture-insoluble matter content of not more than 5% by weight and a methanol-soluble matter content of not more than 5% by weight; processes for preparing the styrene copolymer; a polystyrene resin composition containing the styrene copolymer; and injection-molded article prepared by injection-molding the polystyrene resin composition.

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