Invention Grant
US07749948B2 Nitrogen-containing dispersant as an ashless TBN booster for lubricants
有权
含氮分散剂作为润滑剂的无灰TBN助剂
- Patent Title: Nitrogen-containing dispersant as an ashless TBN booster for lubricants
- Patent Title (中): 含氮分散剂作为润滑剂的无灰TBN助剂
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Application No.: US11679540Application Date: 2007-02-27
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Publication No.: US07749948B2Publication Date: 2010-07-06
- Inventor: Ewa Bardasz , Virginia A. Carrick , John K. Pudelski , Renee A. Eveland , Douglas M. Barr , Matthew D. Gieselman
- Applicant: Ewa Bardasz , Virginia A. Carrick , John K. Pudelski , Renee A. Eveland , Douglas M. Barr , Matthew D. Gieselman
- Applicant Address: US OH Wickliffe
- Assignee: The Lubrizol Corporation
- Current Assignee: The Lubrizol Corporation
- Current Assignee Address: US OH Wickliffe
- Agent David M. Shold; Christopher D. Hilker
- Main IPC: C10L1/00
- IPC: C10L1/00 ; C10L1/22 ; C10M149/10
Abstract:
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.
Public/Granted literature
- US20070203031A1 Nitrogen-containing Dispersant as an Ashless TBN Booster for Lubricants Public/Granted day:2007-08-30
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