Invention Grant
- Patent Title: Low sulfur metal detergent-dispersants
- Patent Title (中): 低硫金属洗涤剂分散剂
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Application No.: US11192757Application Date: 2005-07-29
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Publication No.: US07956022B2Publication Date: 2011-06-07
- Inventor: Jean-Louis Le Coent , Jeffrey J. Toman , Curtis B. Campbell
- Applicant: Jean-Louis Le Coent , Jeffrey J. Toman , Curtis B. Campbell
- Applicant Address: US CA San Ramon
- Assignee: Chevron Oronite Company LLC
- Current Assignee: Chevron Oronite Company LLC
- Current Assignee Address: US CA San Ramon
- Main IPC: C10M159/20
- IPC: C10M159/20 ; C10M135/02
Abstract:
A process for preparing alkylhydroxybenzoate detergent-dispersant additives having low sulfur content and high TBN is described. The alkali metal alkylhydroxylbenzoate, alkaline earth metal alkylhydroxybenzoate and overbased alkaline earth metal alkylhydroxybenzoate reaction products described have a sulfur content in the range of from about 0.1 to 1.2 wt % are effective anti-corrosive detergent-dispersant additives in lubricating oil compositions.
Public/Granted literature
- US20070027057A1 Low sulfur metal detergent-dispersants Public/Granted day:2007-02-01
Information query
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