THERMOPLASTIC RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To improve impact resistance and weld strength in a PC/ABS alloy. SOLUTION: This composition comprises 20-80 wt.% of a polycarbonate resin (A) and 80-20 wt.% a rubber-reinforced styrene-based resin (B) obtained by polymerizing 90-10 wt.% of a monomer (b-2) composed of 50-90 wt.% of an aromatic vinyl-based monomer and 50-10 wt.% of a vinyl cyanide-based monomer in 10-90 wt.% of an enlarged diene-based rubber (b-1) which is enlarged by adding 0.1-15 pts.wt. of a watersoluble acidic substance to 100 pts.wt. of a small particle dienebased rubber latex (b-i) having 0.05-0.15μm weight-average particle diameter and has 0.20-2.0μm weight-average particle diameter. The composition has 8-20 wt.% of the ratio of the enlarged diene-based rubber (b-1) in the composition.