Lubricating oil composition for high-temperature applications

US9068136B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9068136-B2
Application numberUS-201113635996-A
CountryUS
Kind codeB2
Filing dateMar 17, 2011
Priority dateMar 19, 2010
Publication dateJun 30, 2015
Grant dateJun 30, 2015

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Abstract

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A lubricating oil composition for high-temperature applications contains (A) a pyromellitate ester, (B) a sulfur-containing triazine antioxidant, and (C) a thiophosphoric acid ester antioxidant. When the lubricating oil composition for high-temperature applications according to the invention is applied to a chain, a gear, a bearing and the like, an amount of evaporation of the lubricating oil composition is restrained for a long time and fluidity thereof is also kept for a long time.

First claim

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The invention claimed is: 1. A lubricating oil composition, comprising: (A) a pyromellitate ester represented by the formula (1): wherein R 1 to R 4 are each, independently, a hydrocarbyl group; (B) a sulfur-containing triazine antioxidant; (C) a thiophosphoric acid ester antioxidant; and at least one of a polybutene having a number-average molecular we…

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What does patent US9068136B2 cover?
A lubricating oil composition for high-temperature applications contains (A) a pyromellitate ester, (B) a sulfur-containing triazine antioxidant, and (C) a thiophosphoric acid ester antioxidant. When the lubricating oil composition for high-temperature applications according to the invention is applied to a chain, a gear, a bearing and the like, an amount of evaporation of the lubricating oil c…
Who is the assignee on this patent?
Ohno Takuya, Okada Tahei, Kamimura Hideto, and 1 more
What technology area does this patent fall under?
Primary CPC classification C10M169/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).