The Nitrogen Is Attached Directly Or Indirectly To -c(=x)-, Wherein X Is Chalcogen, By Nonionic Bonding (e.g., Amides, Aminocarboxylic Acids, Etc.) Patents (Class 508/356)
Abstract: The disclosed invention relates to a functional fluid comprising: at least one oil of lubricating viscosity; at least one detergent, the detergent contributing an amount of metal to the functional fluid equal to a concentration in the range from about 0.015 to about 1% by weight of the functional fluid, the detergent contributing an amount of basicity to the functional fluid equal to a total base number in the range from about 0.3 to about 2; and at least one friction modifier, the friction modifier comprising at least two hydrocarbyl groups attached to a polar group or atom (eg., a nitrogen atom).
Type:
Grant
Filed:
December 13, 2007
Date of Patent:
May 28, 2013
Assignee:
The Lubrizol Corporation
Inventors:
Masahiko Ikeda, Susie Hurley, William D. Abraham, James L. Sumiejski, Craig D. Tipton
Abstract: Compositions comprising an oil of lubricating viscosity; an amide represented by the formula R1R2N—C(O)R3 wherein R1 and R2 are hydrocarbyl groups of at least 6 carbon atoms and R3 is a hydroxyalkyl group of 1 to 6 carbon atoms or a group formed by the condensation of said hydroxyalkyl group, through a hydroxyl group thereof, with an acylating agent; a nitrogen-containing dispersant; and a phosphorus-containing compound are suitable for lubricating a transmission.
Type:
Grant
Filed:
October 11, 2006
Date of Patent:
April 3, 2012
Assignee:
The Lubrizol Corporation
Inventors:
Stuart L. Bartley, Shreyasi Lahiri, Mark R. Baker, Craig D. Tipton