Rubber.reinforced polymers of monovinalidine aromatic compounds having a unique balance of gloss and physical strength properties and a method for their preparation

摘要

A rubber-reinforced polymer comprising a continuous matrix phase of a polymer derived from one or more polymerizable monovinylidene aromatic compounds and having discrete rubber particles dispersed throughout the polymer matrix with a shell/ core morphology and volume average particle size of from 0.1 to 0.25 microns exhibit an excellent balance of gloss and physical strength properties. Specifically, the polymer product exhibits a gloss of 80 percent or greater over a wide range of molding conditions and a impact strength of at least 2 to 3 times that of polystyrene.