Mixture of hyperbranched polyester and polycarbonate for the polyester molding material

A) at least one thermoplastic polyester 10 to 99.99 wt%, B) B1) having an OH number of KOH 1 to 600 mg / polycarbonate g of (DIN 53240, according to the description of Part 2), at least one highly branched polycarbonate and B2) x that was or hyperbranched is at least 1.1, and a mixture of Poriesueru which y is highly or hyperbranched and branched type a