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:
Jan. 10, 2006
Filed:
Apr. 24, 2002
Applicants:
Andreas Gnagnetti, Milan, IT;
Luciano Piras, Milan, IT;
Kishore K. Kar, Midland, MI (US);
Inventors:
Assignee:
Dow Italia s.r.l., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/255 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing aromatic dicarboxylic acids by the oxidation of dimethylbenzenes wherein dimethylbenzenes are mixed with an oxygen containing gas, solvent and catalyst in a reactor and the reaction mixture is agitated with one or more asymmetric radial impellers in combination with at least one axial impeller.