МОНОВИНИЛИДЕНОВЫЕ АРОМАТИЧЕСКИЕ ПОЛИМЕРЫ С УЛУЧШЕННЫМИ СВОЙСТВАМИ И СПОСОБ ИХ ПОЛУЧЕНИЯ

摘要

The present invention is a rubber modified monovinylidene aromatic polymer comprising:a) a monovinylidene aromatic polymer matrix,b) rubber particles dispersed therein, characterized in that the rubber particles are produced from a diene rubber having I) a high molecular weight component and II) a low molecular weight component; the high molecular weight component having a weight average molecular weight at least two and one half times greater than the weight average molecular weight of the low molecular weight component, wherein both components I and II have a 1,4 cis content of greater than 70 percent and III) the rubber is grafted with monovinylidene aromatic polymer to the extent that there is at least 30 percent monovinylidene aromatic polymer present as grafts on the rubber.