The oxide composition of fire-retardant poly- (vinyl chloride) iron of smoke suppressant

摘要

1457524 Smoke and flame suppressants for polymers ARMSTRONG CORK CO 5 Dec 1973 [6 Dec 1972] 56383/73 Heading C3P Vinyl chloride homo and co-polymer compositions may contain, as smoke and flame spread suppressants respectively 0À5 to 75% Fe 2 O 3 based on polymer and hydrated metal compound. The latter may be in an amount of 5-200% based on polymer. In examples ferric oxide and (MgCO 3 ) 4 Mg(OH) 2 .5H 2 O) were added to a mixture of polyvinyl chloride and acrylonitrile/butadiene rubber also containing epoxidized soybean oil, carbon black, butyl benzylphthalate, di 2-ethyl-hexyl phthalate, antimony trioxide, diphenyl guanidine, zinc diethyl dithiocarbamate, sulphur and p,pSP1/SP-oxybis(benzene sulphonylhydrazide). Alumina trihydrate is an alternative flame spread suppressant.