Polymer blend compatibilization using isobutylene-based...

Details Polymer blend compatibilization using isobutylene-based... Polymer blend compatibilization using isobutylene-based...

C - Chemistry, Metallurgy

08

L

C08L 23/22 (2006.01) C08L 21/00 (2006.01) C08L 23/28 (2006.01) C08L 53/02 (2006.01)

Patent

CA 2423816

Compatibilized blends of an isobutylene polymer and an unsaturated diene polymer are prepared using a compatibilizing agent comprising a block-graft copolymer containing polyisobutylene segments and C~4 to C~6 alkyl-substituted styrene polymer segments, such as poly(t-butylstryrene) segments.

L'invention concerne des mélanges comptabilisés d'un polymère isobutylène et d'un polymère diène non saturé préparés au moyen d'un agent comptabilisant comportant un copolymère bloc greffé qui comporte des segments polyisobutylène et des segments de polymère styrène à substitution alkyle C4 à C6, tels que des segments poly(t-butylstyrène).

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