Patent ID: 6936655

Claim:
A crosslinkable, flame retardant polyolefin insulation composition having improved abrasion resistance comprising: (a) 30 to 90 weight percent, based on the weight of the total composition, high density bimodal silane-containing polyethylene base resin selected from the group consisting of: (i) a blend of a bimodal high density polyethylene resin having a density of 0.940 to 0.960 g/cm 3 , melt flow ratio from 50 to 300 and ratio of weight average molecular weight to number average molecular weight from 15 to 30 with an ethylene-silane copolymer and, (ii) a bimodal high density polyethylene resin having a density of 0.940 to 0.960 g/cm 3 , melt flow ratio from 50 to 300 and ratio of weight average molecular weight to number average molecular weight from 15 to 30 grafted with a silane monomer; (b) 5 to 70 weight percent, based on the weight of the total composition, flame retardant; and (c) 0.01 to 1 weight percent, based on the weight of the total composition, silanol condensation catalyst.