| abstract |
PURPOSE: To provide the titled resin compsn. having excellent moldability, heat resistance, tensile strength, dimensional stability, etc., by blending an impact modifier and carbon black with a vinyl chloride/N-substd. maleimide copolymer resin. n CONSTITUTION: 10W100pts.wt. copolymer having an average degree of polymn. of 400W1,000 and composed of 50W95wt% vinyl chloride and 50W5wt% N-substd. maleimide (e.g. t-butylmaleimide) is mixed with 90W0pts.wt. vinyl chloride resin having an average degree of polymn. of 400W1,000 to produce a vinyl chloride resin. 1W20pts.wt. impact modifier (e.g. polymer obtd. by grafting styrene and methyl methacrylate onto polybutadiene) and 0.1W5pts.wt. carbon black with 100pts.wt. said vinyl chloride resin to obtain the titled resin compsn. having a Clash-Berg softening temp. of 75°C or above. n COPYRIGHT: (C)1986,JPO&Japio |