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:
Jul. 15, 2014
Filed:
Dec. 02, 2009
Curtis Bay Campbell, Hercules, CA (US);
Gilles P. Sinquin, Saint Martin du Manoir, FR;
Jean-louis Le Coent, Le Havre, FR;
Jan Anthony Burval, San Rafael, CA (US);
Curtis Bay Campbell, Hercules, CA (US);
Gilles P. Sinquin, Saint Martin du Manoir, FR;
Jean-Louis Le Coent, Le Havre, FR;
Jan Anthony Burval, San Rafael, CA (US);
Chevron Oronite Company LLC, San Ramon, CA (US);
Chevron Oronita S.A., Cedex, FR;
Abstract
A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one alpha olefin oligomer, derived from Cto Calpha olefins, to thereby produce an alkylhydroxyaromatic compound, and wherein at least 90% of the molecules in the alkylhydroxyaromatic compound have the alkyl group attached at the 4-position or higher from the terminus of the longest chain of the alkyl group, and further wherein the alkyl group comprises at least one hydrocarbon tail of at least 7 carbons; (b) neutralizing the resulting alkylated hydroxyaromatic compound with an alkali metal base; (c) carbonating the alkali metal salt from step (b) with carbon dioxide; (d) acidifying the salt produced in step (c); and (e) overbasing the resulting alkylated hydroxyaromatic carboxylic acid.