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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 12252841 B1

PDFFull Text
Date of Patent:
Mar. 18, 2025

Filed:

Apr. 04, 2019

Durable antimicrobial treatment of textile for use in healthcare environment

Applicant:

Avalon Polymills (Hk) Limited, Shatin NT, CN;

Inventors:

Johnson Yiu-Nam Lau, Houston, TX (US);

Denise So Bik Chan, Hong Kong, CN;

Jiachi Chiou, Hong Kong, CN;

Chi Wai Kan, Hong Kong, CN;

Kim Hung Lam, Hong Kong, CN;

Wai Han Lam, Hong Kong, CN;

Ka Fu Yung, Hong Kong, CN;

Assignee:

Avalon Polymills (HK) Limited, Hong Kong, CN;

Attorney:

Loeb & Loeb LLP

Primary Examiner:

Arti Singh-Pandey

Int. Cl.
CPC ...
D06M 16/00 (2006.01); A01N 25/02 (2006.01); A01N 25/34 (2006.01); A01N 33/12 (2006.01); A01N 47/44 (2006.01); D06M 10/10 (2006.01); D06M 13/477 (2006.01); D06M 15/00 (2006.01); D06M 101/06 (2006.01);
U.S. Cl.
CPC ...
D06M 16/00 (2013.01); A01N 25/02 (2013.01); A01N 25/34 (2013.01); A01N 33/12 (2013.01); A01N 47/44 (2013.01); D06M 10/10 (2013.01); D06M 13/477 (2013.01); D06M 15/00 (2013.01); D06M 2101/06 (2013.01); D06M 2200/50 (2013.01); D10B 2401/13 (2013.01); D10B 2509/00 (2013.01); Y10T 442/2525 (2015.04);
Abstract

Compositions and methods are described that provide cellulosic and non-cellulosic fabrics with durable antimicrobial properties. Application of a coating that includes polyhexamethylene biguanide, polyethylene glycol, and a binder to a fabric followed by drying and curing was found to provide antimicrobial properties that are retained through over 100 washings under aggressive hospital washing conditions. In addition, tactile properties and tear resistance of the treated fabrics are maintained or improved.

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