C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/3027, 400/90
C08K 5/53 (2006.01) C08K 5/52 (2006.01) C08K 5/5333 (2006.01) C08L 25/16 (2006.01) C08L 51/04 (2006.01) C08L 51/06 (2006.01)
Patent
CA 1208391
FLAME RETARDANT HIGH IMPACT P-METHYLSTYRENE COMPOSITIONS ABSTRACT The present invention provides a non-foamed flame-retardant article of polymeric composition comprising at least 20% by weight of a monomer mixture comprising 0-0.1% by weight o-methylstyrene 0-15% by weight m-methylstyrene and at least 8% by weight p-methylstyrene; 0-80% by weight of a different ethylenic 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 organophosphorus or halogenated organophosphorus flame retardants. High impact resistance is achieved by the incorporation of a rubbery polymer into the polymeric composition.
439785
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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