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:
Dec. 27, 2016
Filed:
Sep. 07, 2010
William D. Abraham, Concord, OH (US);
Marina Baum, Chagrin Falls, OH (US);
Haihu Qin, Greer, SC (US);
Ying Wang, Chagrin Falls, OH (US);
William D. Abraham, Concord, OH (US);
Marina Baum, Chagrin Falls, OH (US);
Haihu Qin, Greer, SC (US);
Ying Wang, Chagrin Falls, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A lubricant of (a) an oil of lubricating viscosity; (b) a block copolymer of (i) a hydrophobic first block of Calkyl (meth)acrylic units having an average total number of carbon atoms of at least 8; and (ii) a second block of (meth)acrylic units, at least some units of which comprise a heteroatom imparting polar character to the block; (c) an overbased calcium detergent; (d) a phosphorus-containing anti-wear agent that does not contribute to the metal content of the lubricant; and (e) a friction modifier suitable to reduce the static coefficient of friction at a metal-composition interface, is suitable for lubricating a farm tractor.