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:
Jun. 25, 2013
Filed:
Dec. 20, 2006
Elisa Seddon, Lyndhurst, OH (US);
Claire Hollingshurst, Heanor, GB;
Brian R. Cunningham, Timberlake, OH (US);
Alexander F. Psaila, Westerham, GB;
David Hobson, Belper, GB;
Mohamed G. Fahmy, Eastlake, OH (US);
Willis P. Nichols, Cleveland, OH (US);
John W. Dunkerley, Belper, GB;
Elisa Seddon, Lyndhurst, OH (US);
Claire Hollingshurst, Heanor, GB;
Brian R. Cunningham, Timberlake, OH (US);
Alexander F. Psaila, Westerham, GB;
David Hobson, Belper, GB;
Mohamed G. Fahmy, Eastlake, OH (US);
Willis P. Nichols, Cleveland, OH (US);
John W. Dunkerley, Belper, GB;
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
The invention provides a process for preparing a neutral or an overbased detergent, the process by: reacting (a) a pre-prepared suspension comprising (i) a metal base with a mean particle size of 10 micrometers or less; (ii) a surfactant; and (iii) an organic medium in which the metal base is suspended typically by a physical process. An overbased detergent may be formed with a further reaction with acidifying overbasing agent. The invention further provides a lubricant composition containing said neutral and overbased detergent.