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. 05, 2011
Filed:
Apr. 05, 2006
Brady Compton, Baton Rouge, LA (US);
John Lyford, Iv, Baton Rouge, LA (US);
Nicolaas A. DE Munck, Barendrecht, NL;
Aad Gerrit Oskam, Rozenburg, NL;
Allen D. Godwin, Seabrook, TX (US);
Leendert Johannes Van Dop, Rozenburg, NL;
Brady Compton, Baton Rouge, LA (US);
John Lyford, IV, Baton Rouge, LA (US);
Nicolaas A. De Munck, Barendrecht, NL;
Aad Gerrit Oskam, Rozenburg, NL;
Allen D. Godwin, Seabrook, TX (US);
Leendert Johannes Van Dop, Rozenburg, NL;
ExxonMobile Chemical Patents Inc., Houston, TX (US);
Abstract
Esters produced by the catalyzed reaction of alcohols and acids or anhydrides are neutralized by treatment with an aqueous alkaline alkali metal salt solution in an amount that provides less than a stoichiometric amount of alkali metal salt in relation to the acidity of the crude ester and the amount of water present during the treatment is from 0.7 to 1.4 wt % of water based on the weight of crude ester. When using titanium as the esterification catalyst, the ester resulting from this process contains less than 0.01 ppm by weight of titanium residue, so that it is storage stable when stored in the presence of an antioxidant.