Patent ID: 11932823
Assignee: KYB CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  F  B | IPC C  F

Claim 1:
2. A lubricant composition, comprising a first zinc dithiophosphate represented by the following formula 1 and a second zinc dithiophosphate represented by the following formula 2:, , [in the formula 1, R11 to R14 are alkyl groups in which one or more and three or less is/are a primary alkyl group and the other(s) is/are a secondary alkyl group],, , [in the formula 2, R21 to R24 are each a secondary alkyl group];
wherein the primary alkyl group which the first zinc dithiophosphate has is an alkyl group having 4 to 12 carbon atoms;
the secondary alkyl group which the first zinc dithiophosphate has is an alkyl group having 3 to 6 carbon atoms;
the first zinc dithiophosphate is contained in an amount of 0.25 mass % or more and 2 mass % or less in the lubricant composition; and
the secondary alkyl group which the second zinc dithiophosphate has is an alkyl group having 3 to 8 carbon atoms.