Dow Global Technolgoies LLC

Union Carbide Chemicals & Plastics Technology Corporation

Univation Technologies, LLC

Union Carbide Corporation

Day-Chyuan Lee

George N Foster

Robert Harold Vogel

Scott Hanley Wasserman

Tong Chen

Walter Thomas Reichle

Laurence Herbert Gross

Bharat Indu Chaudhary

Frederick John Karol

Gregory T Whiteker

Stuart J Kurtz

Norman M Chin

James LaMonte Adams

Bret P Neese

Polymeric compositions comprising a blend of high-density polyethylene ('HDPE') with ethylene vinyl acetate ('EVA'), and optionally with a carbon black and/or one or more other additives, where the polymeric compositions have certain melt-index and vinyl-acetate-content ranges to improve melt strength and processability. Such polymeric compositions can be employed in manufacturing coated conductors, such as fiber optic cables.

Polyolefin compounds for cable coatings

A composition comprising a composition of an ethylene-based thermoplastic polymer comprising high density polyethylene (HDPE) blended with a modifier component, an optional blowing agent, optionally with carbon black and/or one or more additives, to make foamed articles.

Polyolefin-based cable compound formulation for improved foamability and enhanced processability

A lead-free composition comprising: (A) Polyvinyl chloride (PVC); (B) Bioplasticizer; (C) Calcium Carbonate; and (D) Calcined clay; with the combined weight of the calcium carbonate and calcined clay in the composition in the range of 1 to 15 weight percent, and the weight ratio of calcium carbonate to calcined clay in the range of 15:85 to 85:15. In one embodiment the invention is an insulation sheath for a wire or cable made from the lead-free composition described in the preceding embodiment. In one embodiment the invention is a wire or cable comprising the insulation sheath of the preceding embodiment.

Synergistic blends of calcium carbonate and calcined clay

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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Dolyestown, PA, United States of America

Day-Chyuan Lee