Flame retardant poly (paramethylstyrene) articles

Details Flame retardant poly (paramethylstyrene) articles Flame retardant poly (paramethylstyrene) articles

C - Chemistry, Metallurgy

08

K

400/3027, 400/94

C08K 3/22 (2006.01) C08K 5/00 (2006.01) C08K 5/06 (2006.01) C08L 25/16 (2006.01) C08L 51/00 (2006.01)

Patent

CA 1202133

ABSTRACT A non-foamed flame-retardant article of polymeric composition comprises at least 20% by weight or a monomer mixture comprising 0-0.1% by weight o-methylstyrene 0-15% by weight m-methylstyrene and at least 85% by weight p-methylstyrene; 0-80% by weight of a different ethlenically unsaturated monomer, and a sufficient amount of flame-retardants wherein the amount of flame-retardants is substantially less than would be needed had the p-methylstyrene been replaced with styrene analogs. The flame retardancy is achieved by the addition of antimony compounds and halide flame retardants. High impact resistance is achieved by the incorporation of a rubbery polymer into the polymeric composition.

434313

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