Lubricant additive, lubricant composition, and working fluid composition
AssigneeEneos Corporation
InventorsYuya Mizutani, Hidetoshi Ogata, Tomohiro Takaki, Takeshi Okido
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Abstract
An additive for a lubricating oil containing a phosphorus compound P represented by the following formula (1): wherein R1 and R2 each independently represent an alkyl group having 1 to 3 carbon atoms, and n represents an integer of 0 to 3, wherein the phosphorus compound P contains a phosphorus compound P0 wherein n is 0, a phosphorus compound P1 wherein n is 1, a phosphorus compound P2 where n is 2, and a phosphorus compound P3 wherein n is 3, and a total proportion of the phosphorus compound P0 and the phosphorus 10 compound P1 in the phosphorus compound P is 60% by mole or more.
Claims5
A working fluid composition comprising:
- the lubricating oil composition;
- and
- a refrigerant;
- wherein the lubricating oil composition comprises:
- a lubricating base oil;
- and
- a phosphorus compound P represented by the following formula (1):
- wherein R1 and R2 each independently represent an alkyl group having 1 to 3 carbon atoms, and n represents an integer of 0 to 3,
- wherein the phosphorus compound P comprises a phosphorus compound P0 wherein n is 0, a phosphorus compound P1 wherein n is 1, a phosphorus compound P2 where n is 2, and a phosphorus compound P3 wherein n is 3, and
- a total proportion of the phosphorus compound P0 and the phosphorus compound P1 in the phosphorus compound P is 60% by mole or more.
Dependencies are inferred from the claim text.