Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Corporation

Other

Hercules Corporation

Dow Global Technolgoies LLC

Laurence Herbert Gross

Jeffrey Morris Cogen

Scott Hanley Wasserman

Michael J Keogh

Paul J Caronia

Timothy James Person

Tuyen T Nguyen

George N Foster

Robert Harold Vogel

Allen Noshay

Michael B Biscoglio

Richard G Angell, Jr

Alfred Mendelsohn

Day-Chyuan Lee

Jeffrey D Umpleby

Atanu Biswas

Tong Chen

Frederick F Nelson

John Salvatore Furno

David P Wright

Bharat Indu Chaudhary

Walter Thomas Reichle

Robert F Eaton

John Klier

Suh Joon Han

Stuart J Kurtz

Marvin E Sauers

Sidney E Berger

Patrick M Russell

James LaMonte Adams

Joseph Anthony Obal

Thorne M Bartlett

Robert L Silverman

James R Leech

Kenneth T Devlin

Stephen R Betso

Michael John Keogh

Paul Joseph Caronia

Jeff M Cogen

TRXLPE-type cable sheaths are prepared by a method in which a solid polymer is mixed with a liquid water tree-resistant agent either by dosing or direct injection. In the dosing method, the solid polymer, e.g., high pressure LDPE, is sprayed or otherwise contacted with the liquid agent, e.g., PEG, the agent is allowed to absorb into the polymer, and the polymer with absorbed agent is then fed to an extrusion apparatus for extrusion over a sheathed or unsheathed wire or optic fiber. In the direct injection method, the solid polymer is first fed to an extrusion apparatus, and the liquid agent is sprayed or otherwise contacted with the polymer before the two are blended with one another through the action of the mixing elements of the apparatus.

Method for producing water tree-resistant, TRXLPE-type cable sheath

Shear thickening compositions can function in an energy or communications transmission cable to provide enhanced protection against externally applied forces, e.g., cutting or puncture from a shovel. As a free or bound layer, or when used via impregnation into a substrate used for an internal component or wrap, the shear thickening composition provides protection against mechanical damage that far surpasses conventional technologies. In foamable compositions for cable components, the shear thickening composition provides enhanced integrity of the polymer melt for enhanced foam performance. As a flame retardant component, the shear thickening composition provides an enhanced char formation mechanism for superior flame retardance.

Cable comprising a shear thickening composition

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

Curable polymer compositions comprising a crosslinkable polymeric component; an initiator component; and an allyl compound component.

Allyl compounds, compositions containing allyl compounds and processes for forming and curing polymer compositions

Polyethylene crosslinkable composition

A cable comprising one or more electrical conductors or a core of one or more electrical conductors, each conductor or core being surrounded by an insulating composition comprising a mixture of

Tree resistant cable

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

A cable comprising one or more electrical conductors or a core of one or more electrical conductors, each conductor or core being surrounded by a layer of insulation comprising a multimodal copolymer of ethylene and one or more alpha-olefins, each alpha-olefin having 3 to 8 carbon atoms, the copolymer having a broad comonomer distribution as measured by TREF with a value for the percent of copolymer, which elutes out at a temperature of greater than 90 degrees C., of greater than about 5 percent; a WTGR value of less than about 20 percent; a melt index in the range of about 0.1 to about 30 grams per 10 minutes; and a density in the range of 0.880 to 0.950 gram per cubic centimeter, and being prepared by a low pressure process.

A process for extruding a thermoplastic polymer comprising:

Extrusion of thermoplastic copolymers

A process for grafting an anhydride of an unsaturated aliphatic diacid onto a polyolefin comprising:

Process for grafting diacid anhydrides

Water curable compositions of silane containing ole36in polymers

Solid polyolefin catalysts are adapted for use in low pressure gas phase fluid bed polymerization processes by being mixed with selected particulate organic support materials in a high speed bladed finishing device so as to cause the catalysts materials to become embedded in, and/or adhered to, softened particles of the support material.

Olefin polymerization catalysts adapted for gas phase processes

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Bridgewater, NJ, United States of America

Laurence Herbert Gross