| 摘要 |
Disclosed herein is a composition comprising a polycarbonate resin; a polycarbonate-polysiloxane copolymer; and an anhydride modified polyolefin. Disclosed herein too is a composition comprising a blend of a polycarbonate resin with a polycarbonate-polysiloxane copolymer; and an anhydride modified polyethylene, wherein the composition has a wear factor of less than or equal to about 350 in<SUP>5</SUP>min/ftlb-hr and an impact strength of greater than or equal to about 500 joules per meter, and wherein the wear factor is measured according to the formula: <?in-line-formulae description="In-line Formulae" end="lead"?>Wear Factor=[(6.1x10<SUP>8</SUP>)(W)][(PxV)x(D)x(T)]<?in-line-formulae description="In-line Formulae" end="tail"?> where P is the applied pressure in pounds per square inch and V is the velocity in feet per minute, W is the weight loss in grams, D is the density in grams per cubic centimeter and T represents 100 hours.
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