Patent ID: 6869995

Claim:
A composition comprising: (i) polyethylene, and based on 100 parts by weight of component (i), (ii) about 0.3 to about 0.6 part by weight of a thiobis phenolic antioxidant selected from the group consisting of 4,4′-thiobis(2-methyl-6-t-butylphenol); 4,4′-thiobis(2-t-butyl-5-methylphenol); 2,2′-thiobis(6-t-butyl-4-methylphenol); or a mixture of said compounds; and (iii) about 0.4 to about 1 part by weight of a polyethylene glycol having a molecular weight in the range of about 1000 to about 100,000, wherein the composition being capable of (a) preparing a moldable, test plaque having (1) a MDR ts1 at 150 degrees C. of at least about 20, (2) a MDR ts1 at 140 degrees C. of at least about 50, (3) a retention of tensile strength of at least about 75% after two weeks of aging at 150 degrees C., (4) a retention of elongation of at least about 75% after two weeks of aging at 150 degrees C., (5) water tree resistance less than about 45%, and (6) sweatout of less than about 100 ppm of the thiobis phenolic antioxidant and (b) imparting water tree resistance to the insulation of cables prepared therefrom.