Bio-based lubricant compositions
AssigneeExxonMobil Technology and Engineering Company
InventorsZhisheng Gao, Nicholas W. Mcbride, Jose A. Gomez, Benjamin D. Eirich
Life of this patent
Estimating the term…
Abstract
A lubricant composition may be used as an engine oil. Such lubricant compositions may, for example, include: from about 25.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, the oil base stock including at least one bio-sourced basestock and at least one alkyl naphthalene; and wherein the lubricant composition includes about 0.05 mass % or less phosphorus, about 0.05 mass % or less sulfur, and about 0.5 mass % or less ash.
Claims23
A lubricant composition for use as an engine oil, comprising:
- from about 25.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, the oil base stock comprising at least one bio-sourced basestock and at least one alkyl naphthalene;
- wherein the at least one bio-sourced basestock comprises squalane;
- and
- wherein the lubricant composition comprises about 0.05 mass % or less phosphorus, about 0.05 mass % or less sulfur, and about 0.5 mass % or less ash.
A lubricant composition for use as an engine oil, comprising:
- from about 25.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, the oil base stock comprising at least one bio-sourced basestock and at least one alkyl naphthalene, wherein the lubricant composition comprises from about 25.0 mass % to about 80.0 mass % of the at least one bio-sourced basestock, wherein the at least one bio-sourced basestock comprises squalane, and wherein the lubricant composition comprises about 10.0 mass % to 30.0 mass % of the at least one alkyl naphthalene;
- from about 0.0 mass % to about 1.0 mass % of at least one metal detergent, based on the total mass of the lubricant composition;
- from about 0.1 mass % to about 1.0 mass % of at least one ashless antiwear additive;
- and
- from about 0.1 mass % to about 10.0 mass % of at least one antioxidant;
- wherein the lubricant composition comprises about 0.05 mass % or less phosphorus, about 0.05 mass % or less sulfur, and about 0.5 mass % or less ash.
A process for making a lubricant composition, comprising:
- combining from about 25.0 mass % to about 99.8 mass % of an oil base stock, based on a total mass of the lubricant composition, the oil base stock comprising at least one bio-sourced basestock and at least one alkyl naphthalene, and from about 0.0 mass % to about 1.0 mass % of at least one metal detergent, based on the total mass of the lubricant composition;
- wherein the at least one bio-sourced basestock comprises squalane;
- and
- wherein the lubricant composition comprises about 0.05 mass % or less phosphorus, about 0.05 mass % or less sulfur, and about 0.5 mass % or less ash.
Dependencies are inferred from the claim text.