Compositions containing polycarbonate and grafted rubber having improved low-temperature toughness

摘要

A thermoplastic molding composition suitable for preparing molded articles having improved properties, most notably high ductility and impact strength at low temperature, is disclosed. The composition contains a resinous blend of aromatic polycarbonate and a mixture of at least two grafted rubbers. The mixture of grafted rubbers contains a "small-mode" component having a weight average particle size of less than 0.3 microns and a "large-mode" component having a weight average particle size of 0.3 microns or larger.