Patent ID: 8273825

Claim:
A resin composition having enhanced wear characteristics comprising: from 50 to 99 wt. % of a polycarbonate resin; and from 1 to 50 wt. % of a polyolefin that has been modified with at least one functional group selected from a carboxyl, an acid anhydride, an epoxy groups or mixtures containing at least one of the foregoing functional groups to form a blended mixture; an unmodified polyolefin selected from crystalline polypropylene, crystalline propylene-ethylene block or random copolymer, low density polyethylene, high density polyethylene, linear low density polyethylene, ultra-high molecular weight polyethylene, ethylene-propylene random copolymer, ethylene-propylene-diene copolymer, or a mixture comprising at least one of the foregoing polyolefins; and residues of a bi-functional monomer wherein the bi-functional monomer comprises a monomer represented formula (6): wherein Z is an alkylene group, an alkylidene, an oligomethylene group, a phenylene group, or a naphthylene group containing at least 5 carbon atoms, the phenylene group and the naphthylene group being optionally substituted with a substituent, a monomer represented formula (7): HO—R—OH (7) wherein R is an alkylene group, an alkylidene, an oligomethylene group, a phenylene group, or a naphthylene group containing at least 5 carbon atoms, the phenylene group and the naphthylene group being optionally substituted with a substituent; a monomer represented formula (8): HOOC—R—COOH (8) wherein R is an alkylene group, an alkylidene, an oligomethylene group, a phenylene group, or a naphthylene group containing at least 5 carbon atoms, the phenylene group and the naphthylene group being optionally substituted with a substituent; or combinations of one or more of the foregoing; wherein the resin composition has a Notched Izod Impact of from 500 J/m to 900 J/m as measured at room temperature using 3.18 mm (+3%) bars in accordance with a standard selected from ASTM D256; and a wear factor K of less than or equal to 36.86, as calculated according to equation (3) Wear( K )Factor=[(6.1×10 − 5)(wt.loss)]/[( PV )(density)(time)] Eq. (3).