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:
Jan. 16, 2024
Filed:
Jan. 06, 2022
Applicant:
University of Houston System, Houston, TX (US);
Inventors:
Hadi Ghasemi, Spring, TX (US);
Zixu Huang, Houston, TX (US);
Assignee:
UNIVERSITY OF HOUSTON SYSTEM, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 175/12 (2006.01); B05D 1/38 (2006.01); B05D 7/00 (2006.01); C09D 5/14 (2006.01); B05D 1/02 (2006.01); B05D 5/00 (2006.01); C08G 18/32 (2006.01); C08G 18/75 (2006.01); C08G 18/73 (2006.01); C08G 18/42 (2006.01); C08G 18/10 (2006.01);
U.S. Cl.
CPC ...
C09D 175/12 (2013.01); B05D 1/38 (2013.01); B05D 7/546 (2013.01); C08G 18/10 (2013.01); C08G 18/3275 (2013.01); C08G 18/4263 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C09D 5/14 (2013.01); B05D 1/02 (2013.01); B05D 5/00 (2013.01); B05D 2490/50 (2013.01); B05D 2503/00 (2013.01);
Abstract
Durable antibacterial coatings are prepared by inter-diffusing zwitterionic polyurethane in acrylic polyurethane. Bacterial attachment is substantially eliminated from the surface of the coatings due to the hydrophilicity of the zwitterionic polyurethane. Long-term antibacterial properties were observed for both Gram-negative and Gram-positive bacteria even when the coatings were constantly challenged by mechanical abrasion.