Lubricating oil compositions for construction machines

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United States of America Patent

PATENT NO 9499765
APP PUB NO 20160281022A1
SERIAL NO

14665737

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Abstract

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The present invention is directed to a Zinc-free transmission oil composition for construction machinery comprising:

    (i) a major amount of an oil of lubricating viscosity,(ii) at least 0.25 wt. % of a dithiophosphorylated carboxylic acid compound, and(iii) a succinimide dispersant derived from a polyisobutylene group of 1200 molecular weight or less.

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Patent Owner(s)

Patent OwnerAddress
CHEVRON JAPAN LTD6001 BOLLINGER CANYON ROAD P O BOX 6006 SAN RAMON CA 94583-0806

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sakamoto, Masanobu Kakegawa, JP 12 32
Yamamoto, Shuhei Makinohara, JP 213 896

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