Heat-resistant high-impact polystyrene composition

Details Heat-resistant high-impact polystyrene composition Heat-resistant high-impact polystyrene composition

C - Chemistry, Metallurgy

08

L

400/6452

C08L 9/06 (2006.01) C08K 5/098 (2006.01) C08K 7/14 (2006.01) C08L 51/04 (2006.01)

Patent

CA 2031657

ABSTRACT OF THE DISCLOSURE A heat-resistant, high-impact polystyrene composition is disclosed, comprising: (A) 100 parts by weight of high-impact polystyrene, (B) from 1.5 to 5 parts by weight of glass fibers, (C) from 2.5 to 10 parts by weight of a styrene- butadiene-styrene copolymer, and (D) from 0.05 to 5 parts by weight of a metal salt of a higher fatty acid, the high-impact polystyrene (A) having a polybutadiene content of from 4.5 to 8.0% by weight and an average rubber particle diameter of from 0.5 to 2.0 µm and containing no plasticizer; the glass fibers (B) having an average fiber length of from 0.5 to 2 mm and an average aspect ratio of 20 or more and having undergone surface treatment with a silane coupling agent; and the styrene-butadiene-styrene copolymer (C) having a butadiene unit content of from 40 to 80% by weight.

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