Title:
LUBRICATING COMPOSITION INCLUDING ESTERIFIED COPOLYMER AND LOW DISPERSANT LEVELS SUITABLE FOR DRIVELINE APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2013/123102
Kind Code:
A3
Abstract:
A lubricating composition, method of making, and method of use are disclosed. The lubricant includes an esterified copolymer including a backbone that includes units derived from a vinyl aliphatic monomer and units derived from a carboxylic acid monomer, the carboxylic acid monomer comprising an α,β-ethylenically unsaturated dicarboxylic acid or derivative thereof. The lubricating composition also includes an oil of lubricating viscosity. The lubricating composition includes no more than 2.5 wt. % of dispersant for dispersing oxidation products, other than the esterified copolymer.
Inventors:
BAKER MARK R (US)
BAUM MARINA (US)
HICKMAN LYNSEY (GB)
VISGER DANIEL C (US)
BARTON WILLIAM R S (GB)
BAUM MARINA (US)
HICKMAN LYNSEY (GB)
VISGER DANIEL C (US)
BARTON WILLIAM R S (GB)
Application Number:
PCT/US2013/026009
Publication Date:
November 21, 2013
Filing Date:
February 14, 2013
Export Citation:
Assignee:
LUBRIZOL CORP (US)
International Classes:
C10M145/16; C10M149/00
Domestic Patent References:
| WO2010014655A1 | 2010-02-04 | |||
| WO2011146692A1 | 2011-11-24 |
Foreign References:
| GB922878A | 1963-04-03 | |||
| US6544935B1 | 2003-04-08 | |||
| EP2014750A1 | 2009-01-14 | |||
| US5435928A | 1995-07-25 | |||
| US6174843B1 | 2001-01-16 |
Attorney, Agent or Firm:
TYRPAK, Michele M. et al. (29400 Lakeland Blvd.Mail Drop 022, Wickliffe Ohio, US)
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