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:
Oct. 20, 1992
Filed:
Nov. 05, 1990
Applicant:
Inventors:
Daniel R Chisholm, Warwick, NY (US);
George A Seubert, Jr, Hamburg, NJ (US);
Assignee:
Witco Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560147 ; 562512 ;
Abstract
A process is provided for the preparation of mercaptopropionic acid esters by reaction of an acrylic acid ester with hydrogen sulfide in the presence of a weakly basic amine as a catalyst, a polyether as a co-catalyst, a polythiodipropionic acid ester as a reactive solvent, and added elemental sulfur.
Chisholm, Daniel. (1992). Method for preparing mercaptopropionic acid esters (U.S. Patent No. 5157147). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5157147
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile