发明名称 |
Nitrogen-containing Dispersant as an Ashless TBN Booster for Lubricants |
摘要 |
Lubricant compositions comprising (a) an oil of lubricating viscosity; and (b) at least one non-metal-containing additive, comprising a nitrogen-containing dispersant having a total base number of at least about 90 are useful for lubricating an internal combustion engine. The lubricants have less than 1.0% sulfated ash and a total base number of at least about 8.5, and at least 30% of the total base number of the composition is provided by non-metal-containing additives. The lubricants exhibit a high TBN without deterioration of elastomeric seals.
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申请公布号 |
US2007203031(A1) |
申请公布日期 |
2007.08.30 |
申请号 |
US20070679540 |
申请日期 |
2007.02.27 |
申请人 |
BARDASZ EWA;CARRICK VIRGINIA A;PUDELSKI JOHN K;EVELAND RENEE A;BARR DOUGLAS M;GIESELMAN MATTHEW D |
发明人 |
BARDASZ EWA;CARRICK VIRGINIA A.;PUDELSKI JOHN K.;EVELAND RENEE A.;BARR DOUGLAS M.;GIESELMAN MATTHEW D. |
分类号 |
C10L1/22 |
主分类号 |
C10L1/22 |
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