Patent ID: 8933004
Filing Date: 2015-01-13
Classification: C10L,C10M,C10N

Abstract:
1. An antioxidant concentrate composition, suitable to prevent oxidation of a mineral oil, comprising: (i) about 0.1 to about 5 wt % of dibenzylhydroxylamine, about 0.1 to about 99.9 wt % of ortho-tert-butylphenol, and 0 to about 99.8 wt % of 2,6-di-tert-butylphenol, all wt % based on the total weight of the antioxidant concentrate composition, or (ii) about 5 to about 20 wt % of dibenzylhydroxylamine and about 80 to about 95 wt % of ortho-tert-butylphenol, all wt% based on the total weight of the antioxidant concentrate composition (iii) about 0.1 to about 5 wt % of dibenzylhydroxylamine, about 30 to about 95wt % of 3,5-di-tert-butyl-4-hydroxyphenylhydrocinnamic acid, C7-C9 branched alkyl esters, and 0 to about 70 wt % of 2,6-di-tert-butylphenol, all wt % based on the total weight of the antioxidant concentrate composition, or (iv) about 0.1 to about 5 wt % of dibenzylhydroxylamine and about 95 to about 99.9 wt % of 4,4′-methylenebis(2,6-di-tert-butylphenol), all wt % based on the total weight of the antioxidant concentrate composition.