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:
Oct. 21, 2008
Filed:
Oct. 19, 2004
Craig D. Tipton, Perry, OH (US);
Mark R. Baker, Lyndhurst, OH (US);
Shreyasi Lahiri, Mentor, OH (US);
Craig D. Tipton, Perry, OH (US);
Mark R. Baker, Lyndhurst, OH (US);
Shreyasi Lahiri, Mentor, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A composition of a major amount of an oil of lubricating viscosity; a secondary or tertiary amine being represented by the formula RRNRwherein Rand Rare alkyl groups of at least 6 carbon atoms and Ris hydrogen, a hydrocarbyl group, a hydroxyl-containing alkyl group, or an amine-containing alkyl group; and a dispersant, provides high static coefficients of friction and a durable positive slope during oxidative and mechanical stressing, particularly as a friction component of an automatic transmission.