Abstract: The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.
Type:
Grant
Filed:
July 25, 2012
Date of Patent:
April 14, 2015
Assignee:
The Lubrizol Corporation
Inventors:
Barton J. Schober, Mark C. Davies, Michael R. Sutton, Marina Baum, Daniel C. Visger, David Price, Brent R. Dohner, Mark F. Wilkes
Abstract: This invention relates to grease compositions containing mineral oil and/or synthetic oil as base oil, (A) lithium stearate as thickener, and (B) one kind or two kinds of more of compounds selected from a group of oxidized paraffins and diphenyl hydrogenphosphite and displaying a worked penetration in the range 270-350 and also to bearings such a s linear guides, ball screws, and rolling bearings sealed with said grease compositions.
This invention can provide grease compositions of low dust emission which perform with an excellent balance of low dust emission, low rolling characteristics and fretting resistance, extend the lubricating period, reduce the maintenance cost, and are suitable for use in a clean environment. This invention can also provide bearings sealed with said grease compositions of low dust emission suitable for use in a clean environment such as semiconductor manufacturing equipment, liquid crystal manufacturing equipment, and electronic computers.
Abstract: A translucent wire and cable lubricant containing from about 30 to about 80 weight percent of a mixture further comprising a resin and an oil, from about 10 to about 40 weight percent solvent, from about 1 to about 15 weight percent thermoplastic synthetic polymer, from about 1 to about 15 weight percent oxidized wax, from about 1 to about 15 percent sheep tallow, an extreme pressure agent, an antiwear agent, and a corrosion inhibitor.