THERMOPLASTIC COMPOSITIONS WITH GOOD STABILITY

The invention relates to a composition for production of a thermoplastic moulding compound, wherein the composition comprises or consists of at least the following constituents:A) 30% to 94% by weight of a polymer or polymer mixture consisting of at least one representative selected from aromatic polycarbonate and aromatic polyestercarbonate and optionally additionally comprising aromatic polyester,B) 5% to 65% by weight of rubber-based graft polymer B.1, optionally in a mixture with rubber-free vinyl (co)polymer B.2,C) 0.001% to 1% by weight of at least one ester of a sulfonic acid,D) 0% to 30% by weight of one or more polymer additives,and to a process for producing the moulding compound, to the moulding compound itself, to the use of the composition or of the moulding compound for production of moulded articles and to the moulded articles themselves.