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:
Mar. 30, 1982
Filed:
Feb. 01, 1978
Applicant:
Inventors:
George E Kuhlmann, Lisle, IL (US);
Alan G Bemis, Naperville, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562416 ;
Abstract
Catalytic liquid phase molecular oxygen oxidation of methyl-substituted aromatic hydrocarbons having two or more methyl-substituents on adjacent ring carbon atoms in acetic acid reaction medium have, in general, resulted in a substantial production of the desired ortho-oriented di-, tri-, and higher polycarboxylic substituted aromatic acids but also in the co-production of substantial amounts of oxygenated intermediates including methyl-substituted mono- and non-ortho polycarboxylic acids. Several theories have been proposed, including inherent auto-inhibiton, for such incomplete oxidations.