Pigmented polycarbonate molding material with improved melt stability contains thermoplastic polycarbonate, titanium dioxide and an oligomer or polymer with cyclic imino-ether side groups

摘要

A thermoplastic composition containing (i) a thermoplastic polycarbonate and (ii) 3-20 wt% titanium dioxide (based on i + ii) also contains (iii) an oligomer or polymer with at least one cyclic imino-ether side group per molecular chain, in amounts sufficient to improve the stability of the composition towards thermal degradation.