Heat distortion resistant, expandable styrene polymers...

Details Heat distortion resistant, expandable styrene polymers... Heat distortion resistant, expandable styrene polymers...

C - Chemistry, Metallurgy

08

J

403/59, 403/76

C08J 9/14 (2006.01) C08J 9/00 (2006.01) C08J 9/20 (2006.01)

Patent

CA 2025931

- 14 - O.Z. 0050/41123 Abstract of the Disclosure: Expandable styrene polymers containing a) from 80 to 99 % by weight of polystyrene, b) from 1 to 20 % by weight of a styrene-soluble polymer having a softening point above 140°C, c) from 3 to 10 % by weight, based on the sum of a) and b), of a C3- to C6-hydrocarbon as blowing agent, and, if desired, d) conventional additives, the mixture of components a) and b) having a melt flow index MFI 200/5 of from 15 to 30, have high heat distor- tion resistance and a high capacity for expansion.

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