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US 2026/0062639 A1Published application
Lubricating oil composition
AssigneeIdemitsu Kosan Co., Ltd.
InventorsYasuhito NAKAHARA, Keiichi NARITA
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Abstract
There has been a demand for a lubricating oil composition that has excellent cooling performance and insulating properties. This lubricating oil composition contains a base oil (A), solid particles (B) that have an average primary particle diameter of 500 nm or less, and a dispersant (C); the content of the solid particles (B) is 0.1 to 30% by mass based on the total amount of the lubricating oil composition; and the content of the dispersant (C) is 0.1 to 20% by mass based on the total amount of the lubricating oil composition.
Claims15
A lubricating oil composition, comprising:
- a base oil (A);
- solid particles (B) having an average primary particle diameter of 500 nm or less;
- and
- a dispersant (C), wherein
- a content of the solid particles (B) is 0.1 to 30 mass % based on a total amount of the lubricating oil composition;
- and
- a content of the dispersant (C) is 0.1 to 20 mass % based on the total amount of the lubricating oil composition.
4 more elements
Dependencies are inferred from the claim text.