Slow growth tree-craze ethylene polymer compositions

Details Slow growth tree-craze ethylene polymer compositions Slow growth tree-craze ethylene polymer compositions

C - Chemistry, Metallurgy

08

K

31/154, 400/5144

C08K 5/12 (2006.01) C08L 23/04 (2006.01) H01B 3/30 (2006.01) H01B 3/44 (2006.01)

Patent

CA 1185723

ABSTRACT Propagation of electrical trees and water trees in electrical insulation made of ethylene homopolymers or copolymers with an unsaturated monomer is inhibited by the addition to the insulating composition of an organic carboxylic ester having at least one aromatic ring and at least three carboxylic ester groups, the ester being liquid at the operating temperature of the electrical equipment in which the insulation is used. The main utility of the inhibitors of this invention is in the primary insulation for power transmission cables, especially those used in high voltage applications.

411115

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