Compositions of polyethylene and a copolymer of ethylene-alkyl a

Details Compositions of polyethylene and a copolymer of ethylene-alkyl a Compositions of polyethylene and a copolymer of ethylene-alkyl a

1980-09-15

1982-01-26

Seccuro, Carman J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

525227, C08L 2306, C08L 2308

Patent

active

043129188

ABSTRACT:
Polyethylene compositions, based on low density, high molecular weight polyethylene in admixture with a copolymer of ethylene-alkyl acrylate having a melt index of about 3 to about 24, wherein the combined alkyl acrylate content is about 16 to about 25 percent by weight and the copolymer is present in the composition in an amount sufficient to pass U.S. industry standards for stress cracking resistance, generally on the order of about 6 to about 25 percent by weight based on the combined weight of the polyethylene and the copolymer. The compositions of this invention, having improved environmental stress cracking resistance properties are particularly useful as jacketing about telephone wires and cables.

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patent: 3410928 (1968-11-01), Baum
patent: 3663663 (1972-05-01), McAda
patent: 3808047 (1974-04-01), McAda
patent: 3927145 (1975-12-01), Gaeckel et al.

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