FIELD: chemistry.
SUBSTANCE: present invention relates to a lubricating composition comprising at least 90 % by weight of a base oil and a liquid antioxidant composition comprising the following components, expressed in terms of weight % of the lubricant composition: (1) solid alkylated phenyl-alpha-naphthylamine in an amount of 0.01–1.0 % by weight, (2) alkylated diphenylamine derivative of triazole, tolitriazole or benzotriazole in an amount of 0.01 to 0.5 % by weight, and (3) methylenebis(di-n-butyldithiocarbamate) in an amount of 0.01–1.0 % by weight.
EFFECT: improved antioxidant protection.
9 cl, 5 tbl, 1 dwg, 5 ex
Authors
Dates
2018-07-10—Published
2015-08-14—Filed