发明名称 |
PROCESS FOR PRODUCING AN OVERBASED METAL DETERGENT |
摘要 |
<p>A high TBN overbased metal sulfonate detergent is prepared by reacting a hydrocarbyl-substituted organic sulfonic acid or metal salt thereof with a basic alkali metal or alkaline earth metal compound in the presence of a mono-alcohol and a carboxylic acid and reacting this mixture with carbon dioxide to form a carbonated overbased metal sulfonate. The resulting overbased metal detergent has a metal equivalent to sulfonic acid substrate ratio of 5:1 to 27:1. The product thus prepared has improved viscometrics, filterability, and TBN:ash ratio. Lubricating compositions comprising said overbased detergent display reduced friction and wear performance. The invention further relates to methods of lubricating an internal combustion engine with a lubricant containing an overbased detergent prepared as described.</p> |
申请公布号 |
EP2931851(A1) |
申请公布日期 |
2015.10.21 |
申请号 |
EP20130808399 |
申请日期 |
2013.12.03 |
申请人 |
THE LUBRIZOL CORPORATION |
发明人 |
COOK, STEPHEN J.;FRIEND, CHRISTOPHER L.;WALKER, GARY M.;DOHNER, BRENT R. |
分类号 |
C10M159/24;C10N10/02;C10N10/04;C10N20/02;C10N30/02;C10N30/04;C10N30/06;C10N40/25 |
主分类号 |
C10M159/24 |
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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