The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2015
Filed:
May. 10, 2010
Applicants:
Daniel J. Saccomando, Sheffield, GB;
Richard J. Vickerman, Stow, OH (US);
Inventors:
Daniel J. Saccomando, Sheffield, GB;
Richard J. Vickerman, Stow, OH (US);
Assignee:
The Lubrizol Corporation, Wickliffe, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M 141/10 (2006.01); C10M 169/04 (2006.01); C10M 133/16 (2006.01);
U.S. Cl.
CPC ...
C10M 133/16 (2013.01); C10M 2201/085 (2013.01); C10M 2203/1006 (2013.01); C10M 2215/064 (2013.01); C10M 2215/08 (2013.01); C10M 2215/086 (2013.01); C10M 2215/28 (2013.01); C10M 2223/049 (2013.01); C10M 2227/061 (2013.01); C10N 2230/06 (2013.01); C10N 2240/045 (2013.01);
Abstract
A composition is provided for use as a friction modifier for an automatic transmission, which comprises a condensation product of a hydroxypolycarbox-ylic acid, such as 2,3-di-hydroxybutanedioic acid or 2-hydroxybutanedioic acid, with an N,N-di(hydrocarbyl)alkylenediamine, where each hydrocarbyl group contains 1 to 22 carbon atoms, provided that the total number of carbon atoms in the two hydrocarbyl groups is at least about 9, and the alkylene group contains 2 to 4 carbon atoms.