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:
Nov. 12, 2013
Filed:
Jun. 23, 2011
Qinggao MA, Naugatuck, CT (US);
Cyril A. Migdal, Pleasant Valley, NY (US);
Kirk A. Schlup, Woodbury, CT (US);
John-louis Diflavio, Toronto, CA;
Ronald J. Muir, Stouffville, CA;
Qinggao Ma, Naugatuck, CT (US);
Cyril A. Migdal, Pleasant Valley, NY (US);
Kirk A. Schlup, Woodbury, CT (US);
John-Louis DiFlavio, Toronto, CA;
Ronald J. Muir, Stouffville, CA;
Chemtura Corporation, Middlebury, CT (US);
Abstract
Overbased MgO dispersions with high magnesium content and acceptably low viscosities are reproducibly prepared without gel formation by heating to 280-360° C. a mixture of MgO, selected dispersants, low MW carboxylic acids, water and a combination of high boiling hydrocarbon and organic diluent, wherein water is more than 8%, typically more than 10% of the reaction mixture. No additional solubilizing or dispersing agents, promoters or reactants such as carbon dioxide, amines, alcohols etc are needed to obtain the desired dispersions. Compositions such as lubricating oils and fuels containing the overbased magnesium dispersions as additives are also disclosed.