Oil-resistant, expandable styrene polymers

Details Oil-resistant, expandable styrene polymers Oil-resistant, expandable styrene polymers

C - Chemistry, Metallurgy

08

L

C08L 25/04 (2006.01) C08J 9/00 (2006.01) C08J 9/06 (2006.01) C08L 47/00 (2006.01) C08L 25/08 (2006.01)

Patent

CA 2056749

O.Z. 0050/42036 Abstract of the Disclosure: An oil-resistant, expandable styrene polymer contains a) from 10 to 90 % by weight of uncrosslinked poly- styrene and/or an uncrosslinked styrene copolymer containing at least 50 % by weight of copolymerized styrene, b) from 10 to 90 % by weight of a crosslinked styrene polymer which contains at least 0.1 % by weight, but less than 2 % by weight, of a copolymerized monomer having at least two olefinic double bonds, c) from 1 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 in effective amounts, the mixture of a) and b) having a melt flow index MFI (200°C, 5.0 kp) in accordance with DIM 53 735 of from 1 to 20 [g/10 min].

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