Hydroxy-terminated aromatic oligomeric phosphate as additive...

Details Hydroxy-terminated aromatic oligomeric phosphate as additive... Hydroxy-terminated aromatic oligomeric phosphate as additive...

C - Chemistry, Metallurgy

08

L

C08L 69/00 (2006.01) C08K 5/52 (2006.01) C08K 5/523 (2006.01)

Patent

CA 2206177

The present application relates to a flame retarded polycarbonate resin composition which comprises a polycarbonate resin substrate containing an effective amount (e.g., preferably from about 5 % to about 15 %, by weight of the resin substrate) for flame retardancy of a hydroxy-terminated aromatic oligomeric phosphate composition of formula (I), where R is a hydrocarbyl group derived from an aliphatic or aromatic diol, Ar is an alkyl-substituted or unsubstituted phenyl group, n is from about 0 to about 10, and the phosphate composition contains a predominant amount of phosphate where n ranges from 0 to 1.

La présente invention concerne une composition de résine de polycarbonate ignifugée qui comporte un substrat de résine de polycarbonate contenant une quantité efficace (par exemple, de préférence, environ 5 % à environ 15 % du poids du substrat de résine) comme agent ignifuge d'une composition de phosphate oligomère aromatique à terminaisons hydroxy de formule (I), formule dans laquelle R représente un groupe hydrocarbyle dérivé d'un diol aliphatique ou aromatique, Ar représente un groupe phényle non substitué ou substitué par un alkyle, n est compris entre environ 0 et environ 10, et la composition de phosphate contient une quantité prédominante de phosphate dans laquelle n varie de 0 à 1.

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