Patent ID: 7709573

Claim:
A thermoplastic molding composition consisting of: A) at least one member selected from the group consisting of aromatic polycarbonate and polyester carbonate, B) a first graft polymer, C) a second graft polymer, and D) an optional additional (co)polymer consisting of D.1) 50 to 99 wt. %, based on (co)polymer D, of at least one monomer selected from the group consisting of vinylaromatics, nucleus-substituted vinylaromatics and (meth)acrylic acid (C 1 -C 8 )-alkyl esters, and D.2) 1 to 50 wt. %, based on (co)polymer D, of at least one monomer selected from the group consisting of vinyl cyanides, (meth)acrylic acid (C 1 -C 8 )-alkyl esters, wherein D.1 differs from D.2, wherein said first graft polymer including a first grafted (co)polymer and a first free (co)polymer, and said second graft polymer including a second grafted (co)polymer and a second free (co)polymer, wherein the weight-average molecular weight of said first free (co)polymer is lower by at least 32,000 g/mol with regard to the weight-average molecular weight of said second free (co)polymer or, in the instance where D is present, with regard to the proportional weight-average molecular weight of said second free (co)polymer and said additional (co)polymer, and E) optional additional flameproofing agents, and F) optional additional polymer additives selected from the group consisting of flameproofing synergists, antidripping agents, lubricants, mold release agents, nucleating agents, antistatics, stabilizers, fillers and reinforcing substances, dyestuffs and pigments.