| 摘要 |
AN OBJECT OF THE PRESENT INVENTION IS TO PROPOSE A NOVEL THERMOPLASTIC RESIN COMPOSITION HAVING HIGH IMPACT RESISTANCE WITHOUT DEGRADING WEATHER RESISTANCE EVEN WHEN THE CONTENT OF AN IMPACT MODIFIER IS SMALL. A THERMOPLASTIC RESIN COMPOSITION INCLUDES 100 PARTS BY WEIGHT OF A THERMOPLASTIC RESIN (A) AND 0.5 TO 20 PARTS BY WEIGHT OF AN IMPACT MODIFIER (B) CONTAINING A GRAFT COPOLYMER (B-1) CONTAINING AT LEAST ONE (METH) ACRYLATE FLEXIBLE POLYMER PHASE AND A RIGID POLYMER PHASE SERVING AS THE OUTERMOST PART OF THE GRAFT COPOLYMER, A WATER-SOLUBLE POLYMER COMPOUND (B-2) HAVING A PHYSICAL GEL-FORMING PROPERTY, AND A GELLING AGENT (B-3). IN THE THERMOPLASTIC RESIN COMPOSITION, THE CONTENT OF THE WATER-SOLUBLE POLYMER COMPOUND (B-2) HAVING THE PHYSICAL GEL-FORMING PROPERTY IS 0.01 TO 3.0 PARTS BY WEIGHT RELATIVE TO 100 PARTS BY WEIGHT OF THE GRAFT COPOLYMER (B-1) AND THE CONTENT OF THE RIGID POLYMER PHASE SERVING AS THE OUTERMOST PART IN THE GRAFT COPOLYMER (B-1) IS 0.5 TO 10 PERCENT BY WEIGHT.
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