潤滑油組成物 - eneos corporation

Title:

潤滑油組成物

Document Type and Number:

Japanese Patent JP7383009

Kind Code:

B2

Abstract:

[Problem to be Solved]To provide a lubricating oil composition capable of having a good balance of electrical insulation, seizure resistance and wear resistance.[Means to Solve the Problem]The lubricating oil composition according to the present invention comprises:(A) a lubricant base oil;(B) an alkaline earth metal detergent, wherein the amount of the alkaline earth metal is 10 ppm or more by mass and 1000 ppm or less by mass on the basis of the total amount of the lubricating oil composition;(C) 0.005% or more by mass and 0.90% or less by mass of a triazole-based compound represented by the following general formula (1) or (2), on the basis of the total amount of the lubricating oil composition:wherein R¹ is a hydrogen atom or a methyl group, and R² and R³ are each independently a hydrogen atom or a linear or branched hydrocarbon having 1 to 18 carbons, wherein R⁴ is a hydrogen atom or a methyl group, and R⁵ and R⁶ are each independently a hydrogen atom or a linear or branched hydrocarbon having 1 to 18 carbons;(D) at least one sulfur-containing compound selected from the group consisting of a sulfur-containing heterocyclic ether compound and a sulfide compound, wherein the amount of sulfur is 10 ppm or more by mass and 2000 ppm or less by mass, on the basis of the total amount of the lubricating oil composition; and(E) 0.010% or more by mass and 4.0% or less by mass of an ashless dispersant on the basis of the total amount of the lubricating oil composition.

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Inventors:

Moena Ishii
Hitoshi Komatsubara

Application Number:

JP2021507319A

Publication Date:

November 17, 2023

Filing Date:

March 13, 2020

Export Citation:

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Assignee:

eneos corporation

International Classes:

C10M169/04; C10M133/16; C10M133/44; C10M135/10; C10M135/20; C10M135/34; C10M137/02; C10M137/10; C10M159/24

Domestic Patent References:

JP2017160366A
JP2009029968A
JP2011042792A
JP8231976A
JP2002003877A

Attorney, Agent or Firm:

Yukitaka Nakamura
Kazuma Kojima

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