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:
Feb. 02, 1982
Filed:
May. 14, 1980
Applicant:
Inventors:
Fred G Schreiber, Highland Park, NJ (US);
Peter S Gradeff, Pottersville, NJ (US);
Assignee:
Rhone-Poulenc Inc., Monmouth Junction, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 64 ; 560 21 ; 560 65 ; 560109 ; 562473 ; 568630 ; 568648 ; 568649 ;
Abstract
An improved process for producing meta-phenoxy benzoic acids and their lower alkyl esters in improved yields and with higher selectivity by reacting an alkali metal phenate with a lower alkyl ester of meta-halobenzoic acid in the presence of a copper sulfate catalyst.