Lubricant oil composition, internal combustion engine, and method for using lubricant oil composition

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United States of America Patent

PATENT NO 12091630
APP PUB NO 20230122943A1
SERIAL NO

17906207

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Abstract

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A lubricating oil composition containing a base oil (A), a comb-shaped polymer (B), and an olefin-based copolymer (C), wherein a content of the component (B) is more than 0.80 mass % based on the total amount of the lubricating oil composition, a weight average molecular weight of the component (C) is 500,000 or more, and the lubricating oil composition has a viscosity index of 200 or more and a kinematic viscosity at 100° C. of 9.3 to 11.0 mm2/s.

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Patent Owner(s)

Patent OwnerAddress
IDEMITSU KOSAN CO LTDTOKYO 100-8321

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yomogita, Akinori Tokyo, JP 14 46

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