| 发明名称 |
LOWER-ASH LUBRICATING OIL HAVING ULTRA-NEUTRAL ZINC DIALKYLDITHIOPHOSPHATES |
| 摘要 |
A lubricating oil composition, having an ash content of less than 1.5 weig ht 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.
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| 申请公布号 |
CA2231295(C) |
申请公布日期 |
2006.06.06 |
| 申请号 |
CA19982231295 |
申请日期 |
1998.03.06 |
| 申请人 |
CHEVRON CHEMICAL COMPANY |
发明人 |
RUHE, WILLIAM R., JR.;YAMAGUCHI, ELAINE S. |
| 分类号 |
C10M137/10;C07F9/17;C10M159/22;C10M167/00;C10N10/04;C10N30/06 |
主分类号 |
C10M137/10 |
| 代理机构 |
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代理人 |
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| 地址 |
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