Patent ID: 6248840
Filing Date: 2001-06-19
Classification: C08F,C08J,C08K

Abstract:
A process for producing a product suitable for making blown film having desirable levels of clarity and strength from a starting polymer of ethylene selected from homopolymers and copolymers of one or more alpha-olefins,said starting polymer being prepared by reacting ethylene and optionally one or more alpha-olefin comonomers in the presence of a metallocene catalyst,said starting polymer having a density in the range of 0.90 to 0.95 grams/cc, a melt index in the range of 0.1 to 5 grams/10 minutes, and a heterogeneity index in the range of 2 to 3, andsaid process comprising admixing such starting polymer with a crosslinking agent under conditions such that a product is obtained that has but which will produce a blown film an increased shear ratio without an increase in haze.