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:
Apr. 29, 2025
Filed:
Dec. 17, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Arne Thaler, Emmerting, DE;
Achim Schmidt-Rodenkirchen, Bayreuth, DE;
Mark W. Muggli, Emmerting, DE;
Konstantin Mierdel, Bayreuth, DE;
Klaus Hintzer, Kastl, DE;
Thorsten Gerdes, Eckersdorf, DE;
Denis Duchesne, Woodbury, MN (US);
Gregg D. Dahlke, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The process produces a fluorinated olefin from a fluorinated copolymer having at least one of sulfonic acid groups, carboxylic acid groups, or salts thereof. The process includes heating the fluorinated copolymer at a first temperature not more than 450° C. to decompose at least one of the sulfonic acid groups, carboxylic acid groups, or salts thereof to form a partially pyrolyzed intermediate and subsequently heating the partially pyrolyzed intermediate at a second temperature of at least 550° C. to produce the fluorinated olefin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile