Viscosity index improver composition and lubricating oil composition

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United States of America

PATENT NO 12168756
APP PUB NO 20230340357A1
SERIAL NO

18021222

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Abstract

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The present invention aims to provide a viscosity index improver composition capable of providing a lubricant composition that has an excellent viscosity index improving effect, excellent antifoaming properties, and excellent persistence of the antifoaming properties. The present invention relates to a viscosity index improver composition, containing: a (co)polymer (A) containing a monomer (a) represented by the following formula (1) as an essential monomer; a C18-C40 chain aliphatic alcohol (B); and a base oil,

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Patent Owner(s)

Patent OwnerAddress
SANYO CHEMICAL INDUSTRIES LTDKYOTO-SHI KYOTO 605-0995

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagihara, Hiroki Kyoto, JP 2 3
Naito, Nobuhiro Kyoto, JP 15 39
Yamashita, Hiroki Kyoto, JP 144 1350
Yoshida, Kenyuu Kyoto, JP 4 12

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