发明名称 |
Lubricating oil additive composition having a high friction coefficient at elevated temperatures |
摘要 |
<p>The present invention provides a lubricating oil additive composition containing a salt of an ashless dispersant and an aromatic carboxylic acid having from about 1 to 4 carboxylic groups when employed as lubricant additives provides a high friction coefficient at elevated temperatures. The lubricating oil composition containing the present additive composition is especially useful in hydraulic oils and automatic transmission oils.</p> |
申请公布号 |
EP1077249(A1) |
申请公布日期 |
2001.02.21 |
申请号 |
EP19990306421 |
申请日期 |
1999.08.16 |
申请人 |
ORONITE JAPAN LIMITED |
发明人 |
HAYASHI, SHIGEMI;UMEHARA, KATSUMI;OZAKI, AYAKO |
分类号 |
C10N30/06;C10M169/04;C10M133/56;C10M141/06;C10N40/04;C10N40/08;C10N40/25;(IPC1-7):C10M133/56 |
主分类号 |
C10N30/06 |
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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