Flame-resistant moulding with good durability - comprising styrene]-acrylonitrile]-copolymer, graft polymer, organic halogen-contg. flame-retardant, inorganic cpd., particulate ptfe, etc.

摘要

Moulding (I) comprises: (i) 35-90 wt.% styrene-acrylonitrile-copolymer A; (ii) 5-60 wt.% graft polymer B prepd. by grafting a mixt. of styrene and acrylonitrile onto a diene- or acrylate rubber; (iii) 1-30 wt.% organic halogen-contg. flame-retardant C; (iv) 0.5-8 wt.% inorganic gp. 5 cpds. D; (v) 0.05-0.5 wt.% particulate tetrafluoroethylene-polymer E; (vi) 0-10 wt.% (pref. 0.5-5 wt.%) phosphorous cpd. F. (I) is prepd. by mixing an aq. dispersion of E (average particle size, 0.05-20 microns) with at least one additional component A-D as a solid or melt and finally with the remaining components. ADVANTAGE - (I) are flame-resistant and contain minimal amount of flame-retardant and have good durability.