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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 12760168 B1

PDFFull Text
Date of Patent:
Oct. 13, 2026

Filed:

Oct. 15, 2020

Dual-function melt additives

Applicant:

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

Inventors:

Fuming B. Li, Woodbury, MN (US);

Nathan E. Schultz, Woodbury, MN (US);

John M. Brandner, St. Paul, MN (US);

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);

Attorney:

Jeffrey M. Olofson

Primary Examiner:

Satya B Sastri

Int. Cl.
CPC ...
C08K 5/3475 (2006.01); B01D 39/16 (2006.01); B03C 3/28 (2006.01); C08J 5/18 (2006.01); C08K 5/3477 (2006.01); C08K 5/47 (2006.01); D04H 3/007 (2012.01); D04H 3/16 (2006.01); D06M 10/02 (2006.01); D06M 101/18 (2006.01);
U.S. Cl.
CPC ...
C08K 5/3475 (2013.01); B01D 39/163 (2013.01); B03C 3/28 (2013.01); C08J 5/18 (2013.01); C08K 5/3477 (2013.01); C08K 5/47 (2013.01); D04H 3/007 (2013.01); D04H 3/16 (2013.01); D06M 10/025 (2013.01); B01D 2239/0435 (2013.01); B01D 2239/0442 (2013.01); B01D 2239/0622 (2013.01); C08J 2323/12 (2013.01); D06M 2101/18 (2013.01); D10B 2505/04 (2013.01);
Abstract

Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a dual-function charge-enhancing additive that enhances the charge of the electret and also has anti-microbial properties. The additives are substituted-benzimidazole or substituted-benzothiazole compounds. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.

Find Patent Forward Citations

Li, Fuming. (2026). Dual-function melt additives (U.S. Patent No. 12760168). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12760168

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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