Patent ID: 8158701

Claim:
A flame-retardant polycarbonate blend comprising: from about 50 wt % to about 90 wt % of a polycarbonate polymer; from about 3 wt % to less than 9 wt % of a grafted butadiene rubber; from about 5 wt % to about 16 wt % of a phosphorus-containing flame retardant; from about 1 wt % to about 15 wt % of an ungrafted rigid copolymer; and from about 0.3 wt % to about 5 wt % of a crosslinked silicone rubber containing silica; wherein the blend contains less than 500 ppm halogen content, has a melt volume rate of at least 15 cc/10 min at 260° C./2.16 Kg when measured per ASTM D1238, has a notched Izod impact strength of 480 J/m or greater when measured per ASTM D256, and has a heat distortion temperature of 75° C. or greater at 1.82 MPa when measured per ASTM D648.