| 摘要 |
PURPOSE:To provide a thermoplastic resin compsn. having excellent gloss, resistance to weather and impact, etc., by treating a terpolymer composed of an ethylene/propylene rubber, an arom. vinyl compd. and a vinyl cyanide with a peroxide. CONSTITUTION:A graft terpolymer composed of an ethylene/propylene rubber, an arom. vinyl compd. (e.g. styrene) and a vinyl cyanide (e.g. acrylonitrile) or a thermoplastic resin composed of said terpolymer and an arom. vinyl/vinyl cyanide copolymer is prepd. This thermoplastic resin is treated with 0.05-3wt% peroxide to obtain the desired thermoplastic resin compsn. Examples of the peroxides are dicumyl peroxide, t-butyl peroxides, etc. The treatment is carried out, e.g., by kneading the resin and the peroxide in a Banbury mixer.
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