Low scorching flame retardants for polyurethane foams

Details Low scorching flame retardants for polyurethane foams Low scorching flame retardants for polyurethane foams

C - Chemistry, Metallurgy

08

K

C08K 5/521 (2006.01) C08K 5/101 (2006.01) C08K 5/1535 (2006.01)

Patent

CA 2564441

A flame retardant composition for use in flame retarding a polyurethane foam composition so that the foam has reduced scorch as a result of its manufacture, said flame retardant composition comprising a mixture of (a) a flame retardant of the type that normally causes scorch when used in such foam and (b) a benzofuranone derivative, as a anti-scorch stabilizer. Flame retarded polyurethane foams having reduced discoloration are also provided.

L'invention concerne une composition ignifuge utilisée pour ignifuger une composition de mousse de polyuréthanne de sorte que ladite mousse présente un faible roussissement lors de sa production. Ladite composition ignifuge comprend un mélange: a) d'un produit ignifuge du type qui normalement entraîne un roussissement lorsqu'on l'utilise dans ladite mousse et b) d'un dérivé de benzofuranone utilisé comme stabilisateur anti-roussissement. L'invention concerne également des mousses de polyuréthanne ignifugées à faible décoloration.

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