Patent ID: 8916060
Filing Date: 2014-12-23
Classification: C10M,C10N

Abstract:
1. A lubricating oil, comprising: 70% by mass or more of a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule, having a molecular weight in a range of 300 to 3,000 and a carbon/oxygen molar ratio of 4.0 or less, wherein the polyvinyl ether-based compound has a structure of formula (I): wherein R 0.5 to 5% by mass of a dehydrating agent, wherein said dehydrating agent is at least one selected from the group consisting of N,N′-dimethylcarbodiimide, N,N′-diisopropylcarbodiimide, N,N′-diisobutylcarbodiiimide, N,N′-dihexylcarbodilmide, N,N-dioctylcarbodiimide, N,N′-dioctadecylcarbodiimide, N,N′-dicyclohexylcarbodiimide, N,N′-diphenylcarobodiimide, N,N′-naphthylcarbodlimide, and N,N′-isopropylphenylcarbodiimide.