Polyethylene film composition

摘要

An in situ blend comprising a mixture of first and second ethylene/alpha-olefin copolymers wherein the alpha-olefin has 3 to 8 carbon atoms, the first copolymer having a density in the range of 0.9035 to 0.908 gram per cubic centimeter and a roll-milled flow index in the range of about 1.4 to about 2.6 grams per 10 minutes and the second copolymer having a density in the range of 0.925 to 0.945 gram per cubic centimeter and a melt index in the range of about 200 to about 400 grams per 10 minutes; the weight ratio of the first copolymer to the second copolymer being in the range of about 45:55 to about 60:40 and the in situ blend having a density in the range of 0.919 to 0.924 gram per cubic centimeter, a melt flow ratio in the range of about 85 to about 115 and a flow index of 65 to 90 grams per 10 minutes.