Invention Grant
- Patent Title: Low ash lubricants with improved seal and corrosion performance
- Patent Title (中): 低灰分润滑剂具有改进的密封和腐蚀性能
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Application No.: US13698144Application Date: 2011-05-17
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Publication No.: US09399747B2Publication Date: 2016-07-26
- Inventor: Matthew D. Gieselman , Mary Galic Raguz , John G. Loop
- Applicant: Matthew D. Gieselman , Mary Galic Raguz , John G. Loop
- Applicant Address: US OH Wickliffe
- Assignee: The Lubrizol Corporation
- Current Assignee: The Lubrizol Corporation
- Current Assignee Address: US OH Wickliffe
- Agent David M. Shold; Teresan W. Gilbert
- International Application: PCT/US2011/036776 WO 20110517
- International Announcement: WO2011/146456 WO 20111124
- Main IPC: C10M161/00
- IPC: C10M161/00 ; C10M163/00 ; C10M135/10 ; C10M149/16
Abstract:
A lubricant composition of (a) an oil of lubricating viscosity; (b) a dispersant comprising the condensation product of a carboxylic functionalized polymer with an aromatic amine having at least 3 aromatic rings and at least one primary or secondary amino group; and (c) an overbased metal detergent comprising an oil-soluble neutral metal salt component and a metal carbonate component, provides good seal and corrosion performance. The total amount of neutral metal salt component in the lubricant composition is at least about 0.75 percent by weight and the sulfated ash level of the lubricant composition is less than about 1.1 percent.
Public/Granted literature
- US20140323372A1 Low Ash Lubricants with Improved Seal and Corrosion Performance Public/Granted day:2014-10-30
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