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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.:

US 12722139 B1

PDFFull Text
Date of Patent:
Sep. 01, 2026

Filed:

Aug. 07, 2020

Polymeric sorbents for aldehydes and methods of making

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Michael S. Wendland, North St. Paul, MN (US);

Himanshu Jasuja, Woodbury, MN (US);

Michael W. Kobe, Lake Elmo, MN (US);

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorney:

Adrian L. Pishko

Primary Examiner:

Anthony J Zimmer

Assistant Examiner:

Logan undefined Laclair

Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01D 53/72 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); C08F 8/36 (2006.01); C08F 212/08 (2006.01); C08F 212/36 (2006.01);
U.S. Cl.
CPC ...
B01J 20/261 (2013.01); B01D 53/72 (2013.01); B01J 20/265 (2013.01); B01J 20/28059 (2013.01); B01J 20/28061 (2013.01); B01J 20/28064 (2013.01); B01J 20/28083 (2013.01); B01J 20/28085 (2013.01); B01J 20/3071 (2013.01); B01J 20/321 (2013.01); B01J 20/3251 (2013.01); C08F 8/36 (2013.01); C08F 212/08 (2013.01); C08F 212/36 (2013.01); B01D 2253/202 (2013.01); B01D 2253/306 (2013.01); B01D 2257/702 (2013.01); B01D 2257/708 (2013.01); B01D 2258/06 (2013.01); B01J 2220/44 (2013.01); B01J 2220/4812 (2013.01); B01J 2220/66 (2013.01);
Abstract

Polymeric sorbents for aldehydes including formaldehyde and acetaldehyde are provided. More particularly, the polymeric sorbents are sulfonic acid-containing polymeric materials with impregnated urea-based compounds. Additionally, methods of making the polymeric sorbent, methods of sorbing aldehydes (i.e., aldehydes that are volatile under use conditions) on the polymeric sorbents, compositions resulting from the sorption of aldehydes on the polymeric sorbents, and filters containing the polymeric sorbents are provided.

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