发明名称 |
Lubricating oil compositions containing overbased calcium sulfonates and metal salts of alkyl catechol dithiophosphoric acid |
摘要 |
The anti-wear properties of lubricating oil compositions containing overbased calcium sulfonate are improved when a metal salt of an alkyl catechol ester of dithiophosphoric acid is added to the oil. Oil compositions containing this combination are useful as crankcase lubricants.
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申请公布号 |
US4668409(A) |
申请公布日期 |
1987.05.26 |
申请号 |
US19830537627 |
申请日期 |
1983.09.30 |
申请人 |
CHEVRON RESEARCH COMPANY |
发明人 |
YAMAGUCHI, ELAINE S.;LISTON, THOMAS V. |
分类号 |
C10M137/10;C10M163/00;(IPC1-7):C10M137/10 |
主分类号 |
C10M137/10 |
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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