Patent ID: 8362122

Claim:
A thermoplastic molding composition comprising A) from 10 to 98.9% by weight of at least one thermoplastic polyester, B) from 0.01 to 20% by weight of B1) at least one hyperbranched polycarbonate having an OH number of from 1 to 600 mg KOH/g of polycarbonate (DIN 53240, part 2) in which component B1) has a glass transition temperature Tg of from −80° C. to 140° C., or B2) at least one hyperbranched polyester of the A x B y type where x is at least 1.1 and y is at least 2.1 in which component B2) has a glass transition temperature T g of from −50° C. to 140° C., or mixtures of B1) and B2), wherein a degree of branching of both B1) and B2) is from 10 to 99.9%, and wherein B1) and B2) have both structural and molecular non-uniformity; C) from 0.1 to 10% by weight of at least one carbodiimide, D) from 0 to 60% by weight of further additives, the sum of the percentages by weight of components A) to D) adding up to 100%.