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US 11,441,093 B2Granted
Lubricating oil composition and lubricating agent using same
AssigneeMoresco Corporation
InventorsMao Nakagaki, Shingo Maruyama, Kohei Yamashita
Life of this patent
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Abstract
An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.
Claims18
A lubricant composition comprising, at least:
- (A) 50 to 80 mass % of silicone oil represented by a formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher;
- (B) 10 to 45 mass % of hydrocarbon-based lubricant;
- and
- (C) 1 to 10 mass % of antioxidant,
- wherein R1 and R2 represent an alkyl group or an aralkyl group with 1 to 12 carbons, when R1 or R2 exceeds 1 carbon, then the other is 8 carbons or less, and n represents an integer between 9 and 36.
2 more elements
Dependencies are inferred from the claim text.