Patent ID: 7169887

Claim:
A thermoplastic molding composition comprising a) from 20 to 99% by weight of a thermoplastic polymer selected from the group consisting of polyolefin, modified polyolefin; polyacrylate, polymethacrylate, polymers produced via polymerization of esters and/or amides of acrylic or methacrylic acid, and also their copolymers, polyamide, polyester, polycarbonate, polyether, polytbioether, polyphenylene oxide, polyarylene sulfides, and their mixtures b) from 10 to 80% by weight of a reinforcing fiber and c) from 0.00001 to 1.0% by weight of a phosphane, sulfonium salt or a titanyl compound and/or 0.00001 to 0.03% by weight of a phosphonium salt or ammonium salt or their mixtures as a catalyst which catalyzes the formation of covalent bonds between the thermoplastic polymer and the surface of the additive.