Flame-retardant polyester compositions and the use thereof

Abstract

The invention relates to flame-retardant polyester compositions comprising thermoplastic polyester as component A, fillers and/or reinforcers as component B, phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4−m)/2 compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D phosphonic salt of the formula II as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4−n)/2, inorganic phosphonate as component F, and wax selected from the group consisting of the polyolefin waxes, amide waxes, natural waxes, long-chain aliphatic carboxylic acids and/or esters or salts thereof as component G. The polyester compositions can be used for production of fibers, films and moldings, especially for uses in the electricals and electronics sector.

Dependencies are inferred from the claim text.