| 摘要 |
Compsns. (I) contain (A) 20-90 pts. (all pts. wt.) thermoplastic aromatic polcarbonate; (B) 0-50 pts. graft polymer from (B1) 5-90 pts. mixt. of (B1.1) 50-95% styrene, alpha-methylstyrene, nuclear-substd. styrene, and/or Me methacrylate and (B1.2) 50-5% (meth)acrylonitrile, Me methacrylate, maleic anhdride, and/or N-substd. maleimide on (B2) 95-10 pts. rubber with glass temp. 10 deg. C or lower; (C) 5-70 pts. thermoplastic copolmer of C1) 50-95 styrene, alpha-methylstyrene, nuclear-substd. styrene, and/or Me methacrylate and (C2) 50-5% (meth)acrylonitrile, Me methacrylate, maleic anhydride, and/or N-substd. maleimide; and (D) 0-15 pts. halogen cpd. per 100 pts. (A) + (C) +(D) + (if used) (B) where halogen content from (A) + (D) = 3-10 on (A) + (D). Compsns. further comprises (E) 1-20 pts. per 100 pts. (A) + (C) + (if used) (B) and/or (D) P cpd. of formula (II); (F) 0.05-1 pt. per 100 pts. (A) + (C) + (if used) (B) and/or (D), tetrafluoroethylene polymer of average particle size 0.05-1000 microns and density 1.2-2.3 g/cub. cm; (G) 0.2-5 pts. per 100 pts. (A) to (G), polyalkylene ether modified by radical former. In (II), R1, R2, R3 = opt. halogenated 1-8C alkyl or opt. halogenated 6-20C aryl; n and m each = 0 or 1. Prepn. of (I) comprises mixing (A), (C), (E), (F), (G), and opt. (B) and/or (D) then melt-compounding or melt-extruding at 200-330 deg. C.
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