Impact-modified polymer composition

Details Impact-modified polymer composition Impact-modified polymer composition

C - Chemistry, Metallurgy

08

L

C08L 69/00 (2006.01) C08K 3/34 (2006.01) C08K 5/523 (2006.01) C08L 51/04 (2006.01) C08L 27/18 (2006.01) C08L 85/02 (2006.01)

Patent

CA 2480240

Polycarbonate compositions modified with graft polymer and containing oligomeric phosphoric acid esters having the formula (I), (see formula I) wherein R1, R2, R3 and R4 each mutually independently denote optionally halogenated C1 to C8 alkyl, C5 to C6 cycloalkyl, C6 to C20 aryl or C7 to C12 aralkyl, each optionally substituted by alkyl, n mutually independently denotes 0 or 1 q denotes 0.8 to 30 and X denotes a mononuclear or polynuclear aromatic radical having 6 to 30 C atoms, or a linear or branched aliphatic radical having 2 to 30 C atoms, which can be OH-substituted and can contain up to 8 ether bonds, and calcined talc.

L'invention concerne des compositions de polycarbonate modifié par un polymère greffé, contenant des esters d'acide phosphorique oligomères de formule (I) et du talc calciné, formule dans laquelle R?1¿, R?2¿, R?3¿ et R?4¿ désignent, indépendamment l'un de l'autre, un alkyle en C¿1? - C¿8, ? éventuellement halogéné, un cycloalkyle en C¿5? - C¿6?, un aryle en C¿6? - C¿20? ou un aralkyle en C¿7? - C¿12?, chacun étant éventuellement substitué par un alkyle, n = 0 ou 1, indépendamment l'un de l'autre, q = 0,8 à 30, et X désigne un reste aromatique mononucléaire ou multinucléaire, de 6 à 30 atomes C, ou un reste aliphatique, linéaire ou ramifié, de 2 à 30 atomes C, pouvant être substitué par un OH et pouvant renfermer jusqu'à 8 liaisons éther.

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