Lubricating oil composition

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United States of America Patent

PATENT NO 8889608
SERIAL NO

13634077

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided are a lubricating oil base oil having characteristics of low volatility and excellent low-temperature fluidity and capable of providing long-lasting lubrication property in a wide temperature range from low temperature to high temperature, and a lubricating oil composition using the same. The lubricating oil base oil includes a diester obtained through a reaction between a diol component formed of 1,12-dodecanediol and a carboxylic acid component formed of 2-methylpentanoic acid or 2-methylpentanoic acid and 2-ethylhexanoic acid. The diester is represented by R2COOR1OOCR3, where R1 represents an alkylene derived from the diol component and R2 and R3 each represent an alkyl derived from the carboxylic acid component, and includes 45 to 100 mol % of a diester in which both of R2 and R3 represent C5 alkyls.

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Patent Owner(s)

  • NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuratomi, Tadashi Kitakyushu, JP 6 8
Nagano, Katsumi Tokyo, JP 87 1309

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