发明名称 |
Engine oil having dispersant and aldehyde/epoxide for improved seal performance, sludge and deposit performance |
摘要 |
Disclosed is a lubricating composition having a major amount of an oil of lubrication viscosity and a minor amount of (A) a nitrogen containing dispersant with a total base number of from 20 to 160 on an oil-free basis wherein the improvement comprises adding to said dispersant; (B) a sludge preventing/seal protecting additive of at least one aldehyde or epoxide or mixtures thereof.
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申请公布号 |
US6207624(B1) |
申请公布日期 |
2001.03.27 |
申请号 |
US20000616202 |
申请日期 |
2000.07.13 |
申请人 |
THE LUBRIZOL CORPORATION |
发明人 |
STACHEW CARL F.;ABRAHAM WILLIAM D.;SUPP JAMES A.;SHANKLIN JAMES R.;LAMB GORDON DAVID |
分类号 |
C10M161/00;C10M141/06;C10M163/00;C10N30/04;C10N30/08;C10N40/04;(IPC1-7):C10M141/02 |
主分类号 |
C10M161/00 |
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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