| 发明名称 |
Lower-ash lubricating oil having ultra-neutral zinc dialkyldithiophosphates |
| 摘要 |
<p>A lubricating oil composition, having an ash content of less than 1.5 weight percent, has a base oil of lubricating viscosity, and a zinc dialkyldithiophosphate having a zinc to phosphorus weight ratio in the range of from 0.95:1 to 1.04:1.</p> |
| 申请公布号 |
EP0866113(A1) |
申请公布日期 |
1998.09.23 |
| 申请号 |
EP19980302088 |
申请日期 |
1998.03.19 |
| 申请人 |
CHEVRON CHEMICAL COMPANY LLC |
发明人 |
YAMAGUCHI, ELAINE S.;RUHE, WILLIAM R., JR. |
| 分类号 |
C07F9/17;C10M137/10;C10M159/22;C10M167/00;C10N10/04;C10N30/06;(IPC1-7):C10M137/10;C10M163/00 |
主分类号 |
C07F9/17 |
| 代理机构 |
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代理人 |
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| 主权项 |
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