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:
Jul. 31, 2018
Filed:
Dec. 16, 2011
Mary F. Salomon, Mayfield Village, OH (US);
Julie A. Edgar, Chagrin Falls, OH (US);
William R. S. Barton, Belper, GB;
Mark R. Baker, Midland, MI (US);
Michael E. Huston, Painesville, OH (US);
Mary F. Salomon, Mayfield Village, OH (US);
Julie A. Edgar, Chagrin Falls, OH (US);
William R. S. Barton, Belper, GB;
Mark R. Baker, Midland, MI (US);
Michael E. Huston, Painesville, OH (US);
THE LUBRIZOL CORPORATION, Wickliffe, OH (US);
Abstract
The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a dimercaptothiadiazole salt of a copolymer comprising units derived from monomers (i) an ?-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof (typically carboxylic acid groups or an anhydride), are partially esterified with an alcohol, or mixtures thereof, and wherein at least a portion of carboxylic acid groups not esterified are reacted with an amine. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of lubricating composition in a mechanical device.