POLYCARBONATE MOLDING COMPOSITIONS WITH AN IMPROVED COMBINATION OF LOW TEMPERATURE DUCTILITY, HIGH MELT FLUIDITY, GOOD STABILITY TO AGEING UNDER DAMP HEAT CONDITIONS, GOOD PROCESSING STABILITY AT HIGH TEMPERATURES AND GOOD RESISTANCE TO STRESS-CRACKING

摘要

The invention relates to impact-modified polycarbonate compositions having animproved balance of melt flowability and ductility, which are distinguished byagood resistance to hydrolysis and processing stability, and which comprise amixtureof a first graft polymer B and a second graft polymer C and optionally(co)polymers,the weight-average molecular weight of the free (co)polymer in graft polymer Bbeing lower by at least 32,000 g/mol compared with the weight-averagemolecularweight of the mixture of the free (co)polymer in graft polymer C and of(co)polymer D.