Liquid ashless antioxidant additive for lubricating compositions
AssigneeVanderbilt Chemicals, LLC
InventorsJunbing Yao, Vincent Gatto
Life of this patent
Estimating the term…
Abstract
A lubricating composition comprising at least 90% by weight of a base oil, and an antioxidant composition comprising the components, set forth as weight % of the lubricating composition: (1) solid alkylated-phenyl-alpha-naphthylamine at 0.01-0.3%, (2) an alkylated diphenylamine derivative of triazole, tolutriazole or benzotriazole, at 0.01-0.3%, and (3) methylenebis(di-n-butyldithiocarbamate), at 0.01-0.4%.
Claims5
A lubricating composition comprising at least 90% by weight of a lubricant base, and a liquid antioxidant composition formed by blending the following components, set forth as weight % of the lubricating composition:
- octylated-phenyl-α-naphthylamine at about 0.05 to about 0.25%,
- an octylated diphenylamine derivative of triazole, tolutriazole or benzotriazole, at about 0.025 to about 0.125%, and
- methylenebis(di-n-butyldithiocarbamate), at about 0.1 to about 0.5%.
Dependencies are inferred from the claim text.