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. 05, 1982
Filed:
May. 30, 1980
Applicant:
Inventors:
Manfred Koch, Eppstein, DE;
Hans J Nestler, Konigstein, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546301 ; 71 94 ; 71114 ; 546335 ; 560 61 ; 560 62 ; 562471 ; 562472 ;
Abstract
Process for the preparation of (phenoxy- or benzyl-)-phenoxypropionic acids by simultaneous addition of 2-chloropropionic acid (ester) and the double molar amount of an aqueous alkali hydroxide to a solution of a phenoxyphenol or benzylphenol in a solvent forming an azeotropic mixture with water, while continuously distilling off the water formed or introduced.
Quick Actions:
Koch, Manfred. (1982). Process for the preparation of phenoxypropionic acids and their alkali (U.S. Patent No. 4309547). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4309547
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile