| 摘要 |
PROBLEM TO BE SOLVED: To obtain a thermoplastic resin composition capable of modifying a polymer blend of a polycarbonate-based resin and a polystyrenebased resin and of improving fluidity and impact strength. SOLUTION: This thermoplastic resin composition is obtained by compounding 100 pts.wt. of a resin composition composed of a polycarbonatebased resin (1) having the ratio of a terminal hydroxyl group based on the whole end of >=1 mol.% (about 5-40 mol.%) and a polystyrenebased resin (2) such as a rubber- modified polystyrene-based resin in the ratio of the resin (1)/the resin (2) of 30/70-95/5 (wt.%) with 0.1-20 pts.wt. of a diene-based block copolymer (3), if required, a polyalkylene arylate (4) and a polyphenylene ether-based resin (5). An epoxy modified block copolymer, etc., are contained in the block copolymer component (3). When an organic phosphorus compound as a flame-retardant (6) and a fluororesin as a flame-retardant auxiliary (7) are added to the composition, a nonhalogen-based flame-retardant thermoplastic resin composition is obtained. |
