Flame retardant polypropylene molding compositions

Details Flame retardant polypropylene molding compositions Flame retardant polypropylene molding compositions

C - Chemistry, Metallurgy

08

F

C08F 255/02 (2006.01) C08L 23/28 (2006.01) C08L 51/06 (2006.01) C09K 21/14 (2006.01)

Patent

CA 2049195

ABSTRACT Described are polypropylene molding compositions which have surprisingly good physical properties in combination with flame retardancy, which include copolymers represented by the formula: Image wherein n is > 1, P is isotactic or syndiotactic polypropylene, and S is a grafted side chain having brominated monomeric units of the formula: Image wherein x = 1 to 4, R1 is H or CH3, and R2 is H or a C1-4 lower alkyl group. Polymer blends including such graft copolymers and methods for making such flame retardant polymer compositions are also described.

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