Preparation of shockproof polystyrene exhibiting a...

C - Chemistry – Metallurgy – 08 – F

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C08F 2/02 (2006.01) C08F 212/08 (2006.01) C08F 279/02 (2006.01)

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CA 1241484

ABREDE DESCRIPTIF Procédé de préparation de polymères styréniques modifiés par du caoutchouc et présentant un bon comporte- ment aux basses températures. Procédé selon lequel on met en oeuvre un caoutchouc constitué par du polybuta- diène anionique ayant un poids moléculaire au moins égal à 300 000 et une viscosité supérieure ou égale à 140 centipoises, un dimère de l'.alpha.méthyl-styrène et du cyclohescane de l'isopar ou de 1'ethylbenzène. Utilisa- tion de ces polymères pour la fabrication de cellules de réfrigérateurs.

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