Union Carbide Chemicals & Plastics Technology Corporation

Univation Technologies, LLC

Tong Chen

George N Foster

Robert Harold Vogel

Scott Hanley Wasserman

Day-Chyuan Lee

Walter Thomas Reichle

Laurence Herbert Gross

Frederick John Karol

Gregory T Whiteker

Stuart J Kurtz

James LaMonte Adams

A polymer of the invention comprising the comonomers ethylene, one or more alpha-olefins having 3 to 20 carbon atoms, and one or more cyclic dienes having up to 30 carbon atoms, said polymer having a density of at least 0.890 gram per cubic centimeter; long chain branching; a plurality of double bonds; an Mw/Mn ratio ratio (PDI) of at least 2.5; a flow activation energy of greater than about 6.5 kcal/mol; and a Relaxation Spectrum Index (RSI), PDI, and Melt Index (MI), such that RSI&middot;MI,>2.7 and RSI&middot;MI,&middot;PDI,is in the range of about 0.8 to about 60, when a and b are about 0.6 and minus 1.2, respectively.

Enhanced crosslinking terpolymer

Ethylene polymers having a) a Polydispersity Index of about 2 to about 4; b) a melt index, MI, and Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup.0.6) is about 2.5 to about 6.5; c) a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, of about 1.0 to about 9; and d) a density, .rho., and a percent haze when fabricated into films such that the percent haze is less than 370.rho.-330, are provided. These ethylene polymers advantageously combine superior clarity and toughness with low extractables and enhanced processing ease.

Ethylene polymers having superior clarity enhanced toughness, low

An ethylene polymer having a Polydispersity Index of at least about 3.0, a melt index, MI, and a Relaxation Spectrum Index, RSI, such that (RSI)(MI.sup..alpha.) is greater than about 26 when .alpha. is about 0.7, and a Crystallizable Chain Length Distribution Index, L.sub.w /L.sub.n, less than about 3 is provided. Such ethylene polymer has processability equivalent or superior to even conventional high pressure polyethylene at similar melt index, yet need not be made under high pressure reaction conditions.

Ethylene polymers having enhanced processability

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Neshanic Station, NJ, United States of America

Tong Chen