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. 10, 2023
Filed:
Dec. 03, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Claire Hartmann-Thompson, Lake Elmo, MN (US);
Mark J. Pellerite, Woodbury, MN (US);
Carl A. Laskowski, Minneapolis, MN (US);
John Christopher Thomas, St. Paul, MN (US);
Marina M. Kaplun, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Cationic polymers are provided that comprise monomeric units of Formula (V). (V) Each asterisk (*) indicates an attachment position to another monomeric unit; R is hydrogen or methyl; each Ris each independently an alkyl, aryl, or a combination thereof; L is a linking group comprising an alkylene group; and +Ris a cationic nitrogen-containing group free of any N—H bonds. Membranes formed from said cationic polymers, devices including such membranes, and methods of making such cationic polymers are also provided.