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:
Apr. 06, 2010
Filed:
Aug. 14, 2003
Stephen J. Nolan, Derby, GB;
Carl F. Kernizan, Shaker Hts., OH (US);
Paul S. Greenfield, West Hallam, GB;
Claire L. Hollingshurst, Belper, GB;
Stephen J. Nolan, Derby, GB;
Carl F. Kernizan, Shaker Hts., OH (US);
Paul S. Greenfield, West Hallam, GB;
Claire L. Hollingshurst, Belper, GB;
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
The invention provides a grease composition comprising a stable dispersion of a metal hydroxide with a number average particle size in the range 20 nanometres to 2 micrometres, a surfactant with a HLB of less than 10, a mono- or poly-carboxylic acid, and an oil of lubricating viscosity. The method of preparing a grease composition is also disclosed with benefits including a reduction in reaction time, amount of foam produced and environmental hazards.