发明名称 |
LUBRICATING OIL COMPOSITIONS FOR CONSTRUCTION MACHINES |
摘要 |
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. Also provided is a method for lubricating the transmission of a construction machine comprising lubricating the transmission with a Zinc-free transmission oil composition comprising: (i) a major amount of an oil of lubricating viscosity, (ii) at least 0.25 wt. % of a dithiophosphorylated carboxylic acid compound, and a succinimide dispersant derived from a polyisobutylene group of 1200 molecular weight or less. |
申请公布号 |
CA2921910(A1) |
申请公布日期 |
2016.09.23 |
申请号 |
CA20162921910 |
申请日期 |
2016.02.25 |
申请人 |
CHEVRON JAPAN LIMITED |
发明人 |
YAMAMOTO, SHUHEI;SAKAMOTO, MASANOBU |
分类号 |
C10M141/10;C10M133/44;C10M137/10 |
主分类号 |
C10M141/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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