Lubricating oil composition, lubrication method, and transmission
AssigneeIdemitsu Kosan Co., Ltd.
InventorsToshiaki Iwai, Masato Yokomizo
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Abstract
Provided are a lubricating oil composition including: a base oil (A); a sulfur-based extreme pressure agent (B); and a phosphorus-based extreme pressure agent (C), wherein the sulfur-based extreme pressure agent (B) is a thiadiazole having a branched organic group having 3 or more and 24 or less carbon atoms, and wherein the phosphorus-based extreme pressure agent (C) is a phosphate ester having a ring structure-containing organic group having 6 or more and 24 or less carbon atoms, a lubrication method including using the composition, and a transmission including the composition.
Claims14
A lubricating oil composition, comprising:
- a base oil (A);
- a sulfur-based extreme pressure agent (B);
- and
- a phosphorus-based extreme pressure agent (C),
- wherein the sulfur-based extreme pressure agent (B) is a thiadiazole having a branched organic group having 3 or more and 24 or less carbon atoms,
- wherein the phosphorus-based extreme pressure agent (C) is a neutral phosphate ester having a ring structure-containing organic group having 6 or more and 24 or less carbon atoms, and
- wherein the lubricating oil composition does not contain an acidic phosphate ester or an amine salt of an acidic phosphate ester.
Dependencies are inferred from the claim text.