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AssigneeChevron Phillips Chemical Company LP
InventorsAshish M. Sukhadia, Jerry D. Stark, Max P. McDaniel, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Rajendra K. Krishnaswamy
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This invention relates to the field of metal-catalyzed olefin polymerization methods and the polymers and films prepared therefrom. In one aspect, this invention provides polyethylene and ethylene/α-olefin copolymers formed in the presence of tightly-bridged metallocene catalyst, organoaluminum cocatalyst, and a chemically-treated solid oxide, and optionally in the presence of additional cocatalysts. The resins and films prepared from these polymers exhibit high haze values, low clarity values, and a low coefficient of friction.
A homopolymer or copolymer of ethylene having a polydispersity index (Mw/Mn) less than or equal to about 20, a film clarity of a 1 mil film less than or equal to about 30%, and a film haze of a 1 mil film greater than or equal to 70%.
A homopolymer or copolymer of ethylene having a melt index (MI) from about 0.01 to about 10 dg/min, a film clarity of a 1 mil film less than or equal to about 30%, and a film haze of a 1 mil film greater than or equal to 70%.
A homopolymer or copolymer of ethylene having a high load melt index (HLMI) from about 8 to about 180 dg/min, a film clarity of a 1 mil film less than or equal to about 30%, and a film haze of a 1 mil film greater than or equal to 70%.
A homopolymer or copolymer of ethylene having a film clarity of a 1 mil film less than or equal to about 30%, a film haze of a 1 mil film greater than or equal to 70%, and a density less than about 0.935 g/cm3.
Dependencies are inferred from the claim text.