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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 11661528 B1

PDFFull Text
Date of Patent:
May. 30, 2023

Filed:

Oct. 19, 2020

Methods of producing colored and superhydrophobic surfaces, objects, and coatings

Applicant:

University of Florida Research Foundation, Incorporated, Gainesville, FL (US);

Inventors:

Wolfgang M. Sigmund, Gainesville, FL (US);

Yung-Chieh Hung, Zhubei, TW;

Assignee:

UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED, Gainesville, FL (US);

Attorneys:

Timothy H. Van Dyke

Wolter, Van Dyke, Davis, PLLC

Primary Examiner:

Hui H Chin

Int. Cl.
CPC ...
C09D 127/16 (2006.01); C09D 7/62 (2018.01); C09D 5/00 (2006.01); C09D 7/40 (2018.01); C09D 133/12 (2006.01); C09D 5/29 (2006.01); C09D 7/63 (2018.01); C09D 7/20 (2018.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C08K 5/1535 (2006.01); C08K 5/521 (2006.01); C08K 9/06 (2006.01); B05D 5/06 (2006.01); B05D 5/08 (2006.01); C08L 33/12 (2006.01);
U.S. Cl.
CPC ...
C09D 127/16 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 5/1535 (2013.01); C08K 5/521 (2013.01); C08K 9/06 (2013.01); C09D 5/00 (2013.01); C09D 5/29 (2013.01); C09D 7/20 (2018.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01); C09D 7/63 (2018.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 7/69 (2018.01); C09D 133/12 (2013.01); B05D 5/06 (2013.01); B05D 5/083 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/2241 (2013.01); C08K 2201/005 (2013.01); C08L 33/12 (2013.01);
Abstract

Methods of producing colored and superhydrophobic surfaces, objects, and coatings using a colored paint that imparts a superhydrophobic surface on an object is a suspension of hydrophobic particles in a polymeric binder and a plasticizer in a solvent or mixed solvent, wherein at least a portion of the hydrophobic particles are colored particles. Colored particles can be ultramarine, iron oxide, chromium oxide, or any other colored metal oxide. The hydrophobic particles can be metal oxide particles that are surface functionalized with a fluorinated alkyl silane or an alkyl silane. The binder is a mixture of PDVF and PMMA in a ratio of 3:1 to 10:1. The plasticizer is a mixture of triethyl phosphate and perfluoro(butyltetrahydrofuran) or other perfluorinated hydrocarbon. Surfaces coated using this paint display contact angles in excess of 150° and resist abrasion.

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