| 摘要 |
<p>A rubber-modified styrene resin composition is disclosed, in which a soft component comprising an elastomer, e.g. polybutadiene, is dispersed in a resin matrix comprising a styrene resin in the form of particles, wherein:- (1) the soft component particles dispersed in the composition have an average particle size of from 0.2 to 2.6 mu m; (2) the soft component has a particle size distribution having two maxima, one in the range less than 0.8 mu m and the other in the range not less than 0.8 mu m; (3) the elastomer is present in an amount of from 5.0 to 10.0% by weight based or the resin composition; and (4) the resin matrix has an intrinsic viscosity [ eta ] of at least 0.65. The resin composition exhibits markedly improved impact strength, stiffness and gloss.</p> |
