| 摘要 |
PURPOSE:To provide the titled compsn. which has improved flow characteristics and moldability and gives moldings having excellent dimensional accuracy, surface smoothness, etc., by adding a specified quantity of a specified additive to a heat-resistant ABS resin. CONSTITUTION:An ABS resin compsn. is obtd. by adding 0.5-5pts.wt. chloride or sulfate of a metal selected from Li, Na, K, Cu, Mg, Ca, Sr, Ba, Zn, B, Al, Sn and Ti as a fluidity improver in molding to 100pts.wt. heat-resistant ABS resin (or a resin obtd. by replacing part of styrene, one of main ingredients, with alpha-methylstyrene and carrying out graft copolymerization). Heat-resistant ABS resin tends to lower moldability. However, by adding said additive, flow characteristics and moldability are improved and moldings having excellent dimensional stability, surface smoothness and gloss and complicated shape can be obtd. without detriment to good characteristics inherent to the ABS resin.
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