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. 16, 1976
Filed:
Apr. 07, 1975
Applicant:
Inventors:
John A Donohue, Elmhurst, IL (US);
Ellis K Fields, River Forest, IL (US);
Harold Hart, Okemos, MI (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C07C / ;
U.S. Cl.
CPC ...
2604 / ; 204 / ; 2605 / ;
Abstract
Process for coupling alkyl esters of polyalkylbenzoic acid to prepare polyalkylbiphenylpolycarboxylic acid compounds which comprises anodically oxidizing said alkyl esters in a non-nucleophilic media by applying a source of direct current in liquid phase at atmospheric pressure and temperatures from -30.degree. to 80.degree. C. The biphenyl acid compounds are useful in the formation of polyester resins, including alkyds, and fiber-forming polymers.