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.

Date of Patent:
Sep. 13, 2016

Filed:

Jun. 18, 2013
Applicants:

The University of Western Ontario, London, CA;

Lanxess Butyl Pte. Ltd., Singapore, SG;

Inventors:

Jun Yang, London, CA;

Tingjie Li, London, CA;

Maxim Paliy, London, CA;

Xiaolong Wang, London, CA;

Natalie Suhan, London, CA;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B81B 1/00 (2006.01); G03F 7/00 (2006.01); B81C 1/00 (2006.01); G03F 7/004 (2006.01); G03F 7/20 (2006.01); B08B 17/06 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
G03F 7/0037 (2013.01); B81C 1/00031 (2013.01); B81C 1/00206 (2013.01); G03F 7/004 (2013.01); B08B 17/065 (2013.01); B81B 2203/0361 (2013.01); B82Y 30/00 (2013.01); C03C 2217/76 (2013.01); G03F 7/2024 (2013.01); Y10T 428/24372 (2015.01); Y10T 428/24405 (2015.01);
Abstract

Disclosed herein is a substrate having a surface modified to impart multi-scale roughness, thereby providing superhydrophobic and/or superoleophobic properties. The surface comprises a pattern of microscale pillars topped by a plurality of nanoparticles having a re-entrant convex shape. The area fraction of the surface is also selected to provide the desired superoleophobic properties. Also disclosed herein is a process for creating the modified surface comprising photolithography, optionally followed by vapor deposition. The substrates may be formed into useful articles or applied to pre-formed articles.


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