LUBRICANT COMPOSITION INHIBITING ADSORPTION OF ALPHA-OLEFIN, AND METHOD AND AGENT FOR INHIBITING ADSORPTION OF ALPHA-OLEFIN
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Dec 14, 2015
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Dec 17, 2014
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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.
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