Invention Grant
- Patent Title: Liquid-repellent surfaces made of any materials
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Application No.: US15023621Application Date: 2014-09-26
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Publication No.: US10391530B2Publication Date: 2019-08-27
- Inventor: Chang-Jin Kim , Tingyi Liu
- Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
- Applicant Address: US CA Oakland
- Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
- Current Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
- Current Assignee Address: US CA Oakland
- Agency: Vista IP Law Group LLP
- International Application: PCT/US2014/057797 WO 20140926
- International Announcement: WO2015/048504 WO 20150402
- Main IPC: B32B33/00
- IPC: B32B33/00 ; B08B17/06 ; B05D3/10 ; B05D5/00 ; B05D5/08

Abstract:
An artificial surface is disclosed where super-repellency is obtained solely from surface roughness regardless of the material's intrinsic wettability. The surface is able to repel all known liquids. The surface contains thereon a plurality of microstructures having a doubly re-entrant topology and a liquid-solid contact fraction of less than 50%. In one embodiment, the doubly re-entrant topology includes a cap portion and downwardly extending lip extending from the periphery of the cap portion. The surface withstands high temperatures and resists surface changing phenomenon such as biofouling and chemical scaling.
Public/Granted literature
- US20160207083A1 LIQUID-REPELLENT SURFACES MADE OF ANY MATERIALS Public/Granted day:2016-07-21
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