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. 13, 2026
Filed:
Mar. 27, 2021
Applicant:
Vifor (International) Ltd., St. Gallen, CH;
Inventors:
Yongqi Mu, Los Altos, CA (US);
Jessica Brunke, St. Gallen, CH;
Assignee:
VIFOR (INTERNATIONAL) LTD., St. Gallen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/22 (2006.01); C07C 67/08 (2006.01); C07C 67/307 (2006.01);
U.S. Cl.
CPC ...
C08F 220/22 (2013.01); C07C 67/08 (2013.01); C07C 67/307 (2013.01); C08F 2810/20 (2013.01);
Abstract
Methods for the synthesis of methyl 2-fluoroacrylate (MFA) are provided. The methods include use of various hydro-fluorination agents using a variety of starting materials and reaction schemes. The methyl 2-fluoroacrylate prepared by the methods described herein can further be used to prepare patiromer calcium sorbitex.