Antistatic expandable styrene polymers in bead form

Details Antistatic expandable styrene polymers in bead form Antistatic expandable styrene polymers in bead form

C - Chemistry, Metallurgy

08

J

C08J 9/16 (2006.01) C08J 9/224 (2006.01)

Patent

CA 2048426

O.Z. 0050/41804 Abstract of the Disclosure: An antistatic expandable styrene polymer in bead form, containing a) a styrene polymer, b) from 0.5 to 3% by weight, based on a), of a coating containing b1) from 10 to 70% by weight of finely divided silica, b2) from 20 to 80% by weight of a hydroxyl-contain- ing quaternary ammonium salt and, if desired, b3) from 0.05 to 20% by weight of a conventional coupling agent and/or b4) from 10 to 30% by weight of a conventional agent for shortening the cooling time, c) from 1 to 8% by weight, based on a), of a C3- to C5- hydrocarbon as blowing agent, and, if desired, d) conventional additives in effective amounts.

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