Rubber-modified polystyrene resin composition for making an electroplatable article

摘要

A rubber-modified polystyrene resin composition is for making an electroplatable article which has a sectioned layer defining a unit area. The rubber-modified polystyrene resin composition includes a resin matrix, occlusion rubber particles dispersed in the resin matrix, and non-occlusion rubber particles dispersed in the resin matrix. A total sectional area ratio of the occlusion rubber particles to the non-occlusion rubber particles in the unit area ranges from 1.1 to 14.

主权项

1. A rubber-modified polystyrene resin composition for making an electroplatable article which has a sectioned layer defining a unit area, said rubber-modified polystyrene resin composition comprising:
a resin matrix; occlusion rubber particles dispersed in said resin matrix, said occlusion rubber particles including a rubber base particle in which vinyl cyanide-styrene copolymer having a size not smaller than 0.05 μm is occluded and said occlusion rubber particles having an average graft thickness ranging from 100 Å to 280 Å and an average particle size ranging from 0.35 μm to 0.8 μm; and non-occlusion rubber particles dispersed in said resin matrix, said non-occlusion rubber particles including a rubber base particle being free of vinyl cyanide-styrene copolymer or in which vinyl cyanide-styrene copolymer having a size less than 0.05 μm is occluded; wherein a total sectional area ratio of said occlusion rubber particles to said non-occlusion rubber particles in the unit area ranges from 1.1 to 14.