National Distillers and Chemical Corporation

Other

Fred K Morgan

Melvin F Maringer

Anthony Barlow

A method for covering electrical conducting means is disclosed. In this method an ethylene polymer composition comprising a linear ethylene polymer having a density of at least 0.94 and a crosslinking effective amount of an acetylenic diperoxide compound having a one hour half-life decomposition temperature of more than 135.degree. C. is utilized to cover the electrical conducting means.

Method for covering an electrical conducting means

Ethylene homopolymers and copolymers of ethylene and C.sub.3 -C.sub.8 acylic alpha-olefins prepared with a catalyst comprising the reaction product of a metal organic oxygenated compound, a transition metal organic oxygenated compound and an aluminium halide can be combined with acetylenic high molecular weight diperoxy hexynes or octynes and crosslinked during rotational molding.

Cross-linkable rotational molding compositions

Ethylene homopolymers and copolymers of ethylene and C.sub.3 -C.sub.8 acylic alpha-olefins prepared with a catalyst comprising the reaction product of a metal organic oxygenated compound, a transition metal organic oxygenated compound and an aluminum halide can be combined with acetylenic high molecular weight diperoxy hexynes or octynes and crosslinked during rotational molding.

A synergistic stabilizer combination is provided for use in improving the resistance of polymers, such as olefin polymers and copolymers, to deterioration in physical properties upon exposure to heat. The stabilizer combination contains a quinoline compound, a diamine compound and a magnesium compound in correlated amounts. In addition, olefin polymer compositions such as an ethylene-vinyl acetate copolymer composition containing the synergistic stabilizer combination and a method for preparing the compositions are provided.

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Cold Springs, KY, United States of America

Fred K Morgan