Union Carbide Corporation

Nippon Unicar Company Limited

Seiho Taniguchi

Akio Hayashi

Kunio Kotani

Yuichiro Sakuma

Kenji Igarashi

Youichi Kawasaki

Tadashi Yoshii

Shin' Ichi Sugawara

Yoichi Kawasaki

Compositions based on mixtures of ethylene-ethyl acrylate copolymers and ethylene-vinyl acetate-vinyl chloride terpolymers which have adhesion to and strippability from crosslinked olefin polymers. Compositions of this invention, which are rendered semi-conductive by the addition of carbon black thereto, are especially useful as outer layers bonded to layers of crosslinked olefin polymer insulation of electrical conductors.

Compositions based on mixtures of ethylene-ethyl acrylate copolymers and

Semi-conductive compositions, based on ethylene-vinyl acetate copolymers or chlorinated products thereof, containing carbon black, a silicone compound and an interface crosslink inhibitor, such as a phenol, a quinone, a thiazole or a thiuram sulfide, which find utility as semi-conductive layers about crosslinked polyolefin substrates of electrical conductors.

Semi-conductive compositions, based on ethylene-vinyl acetate

Flame retardant additive comprising alumina trihydrate and a methyl hydrogen polysiloxane which when added to ethylene polymers provide compositions which have improved flame retardant properties, have reduced gas evolution, do not drip or give off noxious gases on burning and are particularly useful as jacketing material about wire and cables.

Flame retardant additives based on alumina trihydrate and ethylene

A polyolefin composition for electrical insulation which comprises polyolefin or crosslinked polyolefin and a small quantity of high-molecular weight polyethylene glycol. This composition is far less vulnerable to the deterioration that occurs as dendroid voids when employed as an electrical insulation of high-tension power cables which are operated under water. The polyethylene glycol has more than 44 carbon atoms and is used in an amount from 0.3 to 10 wt % based on polyolefin.

Polyolefin composition containing high molecular weight polyethylene

A semiconductive composition having controlled strippability from cross-linked ethylene polymer based insulation compositions and comprising chlorinated ethylene-vinyl acetate copolymer containing about 3 to 40 percent by weight of chlorine and conductive carbon black.

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Yokohama, Japan

Seiho Taniguchi