| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition for extrusion molding excellent in extrusion processability and mechanical strength, by using a rubber- reinforced styrene-based resin as a base material. SOLUTION: This thermoplastic resin composition is obtained by adding 0.05-5 pts.wt. of (c) a polyorganosiloxane and 0.01-5 pts.wt. of (d) a fatty acid metal salt to 100 pts.wt. of a composition comprising 5-95 pts.wt. of (a) a graft polymer which is obtained by subjecting an aromatic vinyl-based compound and, if necessary, another copolymerizable vinyl-based compound to copolymerization in the presence of a rubber-like polymer and has a graft percentage of 10-100% and 5-95 pts.wt. of (d) a copolymer which is obtained by subjecting an aromatic vinyl-based compound and, if necessary, another copolymerizable vinyl-based compound to copolymerization, has a number- average molecular weight of 70,000-90,000 and further has a Q-value of 2.1-2.8.
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