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AssigneePhillips Petroleum Company
InventorsAshish M. Sukhadia, David C. Rohlfing, Jay Janzen, Paul J. DesLauriers, Jim D. Byers, Louis Moore, Jr., M. Bruce Welch, Syriac J. Palackal, William M. Whitte, William R. Coutant, Kiplin D. Cowan
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A high clarity film containing three layers wherein the polymer of each outer layer is the same or different polyethylene selected from polyethylenes having a density of at least 0.925 g/cc, and a molecular weight distribution of less than 4, and being further characterized by being substantially free of branches having 6 or more carbon atoms, polyethylenes of the outer layers optionally containing a fluoroelastomer.
A film containing three layers wherein the polymer of each outer layer is a low haze layer having a percent haze of less than 10% wherein the polymer consists essentially of polyethylene, optionally containing a fluoroelastomer, a density of at least 0.93 g/cc, and a molecular weight distribution of no more than 4, said polyethylene being further characterized by being substantially free of branches having six or more carbon atoms.
A coextruded blown film having a percent haze of less than 17.8% consisting of three layers wherein the polymer of the each outer layers is the same or different polyethylene selected from polyethylenes having a density of at least 0.925 g/cc, and a molecular weight distribution of less than 4 and being further characterized by being substantially free of branches having six or more carbon atoms, and the polymer of the inner layer consists essentially of a copolymer of ethylene and 1-hexene having a density in range of about 0.91 to about 0.929 g/cc, an HLMI in the range of about 12 to 24 dg/min. and a molecular weight distribution greater than 10 produced using a chromium oxide containing catalyst in a particle form polymerization process.
Dependencies are inferred from the claim text.