Halogen-free flame retardant thermoplastic polyurethanes

Details Halogen-free flame retardant thermoplastic polyurethanes Halogen-free flame retardant thermoplastic polyurethanes

C - Chemistry, Metallurgy

08

K

C08K 3/32 (2006.01) C08K 5/3492 (2006.01) C08K 5/51 (2006.01) C08K 5/5313 (2006.01)

Patent

CA 2707396

Disclosed is a halogen-free flame retardant thermoplastic polyurethane composite resin composition. The disclosed flame retardant thermoplastic polyurethane composite resin composition is capable of improving flame retardancy and flaming-drip of a thermoplastic polyurethane resin through desirable formation of char during combustion, which uses a phosphate, a diphosphi- nate and/or a polymer thereof, dipentaerythritol, talc, a melamine derivative, etc., instead of a halogen-based flame retardant, as a flame retardant.

L'invention concerne une composition de résine composite de polyuréthanne thermoplastique ignifuge exempt d'halogène. La composition de résine composite de polyuréthanne thermoplastique ignifuge est capable d'améliorer l'inflammabilité et l'égoutture d'une résine de polyuréthanne thermoplastique par l'intermédiaire de la formation souhaitée d'une couche superficielle carbonisée pendant la combustion, et utilise, en tant que retardateur de flammes, un phosphate, un diphosphinate et/ou un polymère de ceux-ci, du dipentaérythritol, du talc, un dérivé de mélamine, etc., au lieu d'un retardateur de flammes à base d'halogène.

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