Lubricant composition inhibiting adsorption of alpha-olefin, and method and agent for inhibiting adsorption of alpha-olefin
AssigneeShell Oil Company
InventorsHiroyuki TAZAKI, Mitsuhiro NAGAKARI, Hiroshi KANEKO
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Abstract
A method for inhibiting adsorption of α-olefin in a lubricant composition to a metal surface is disclosed. The lubricant composition comprises any of oils of Group III, Group IV and polyisobutylenes classified into Group V according to the API base oil classification or a mixture thereof as a base oil, and the α-olefin coexisting in an amount of 1% by mass or less based on the total amount of the composition. The method comprises adding a sarcosinic acid derivative, an aspartic acid derivative or a diethanolamine derivative, or a mixture thereof to the lubricant composition.
Claims6
A lubricant composition comprising any of oils of Group III, Group IV and polyisobutylenes classified into Group V according to the API base oil classification or a mixture thereof as a base oil, and α-olefin coexisting in an amount of 1% by mass or less based on the total amount of the composition, wherein a sarcosinic acid derivative, an aspartic acid derivative or a diethanolamine derivative, or a mixture thereof has been added to the composition.
A method for inhibiting adsorption of α-olefin in a lubricant composition to a metal surface, the lubricant composition comprising any of oils of Group III, Group IV and polyisobutylenes classified into Group V according to the API base oil classification or a mixture thereof as a base oil, and the α-olefin coexisting in an amount of 1% by mass or less based on the total amount of the composition, which method comprises adding a sarcosinic acid derivative, an aspartic acid derivative or a diethanolamine derivative, or a mixture thereof to the lubricant composition.
Dependencies are inferred from the claim text.