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:
Jul. 10, 2012
Filed:
Dec. 11, 2007
Hyun Eui Lim, Daejeon, KR;
Dae Hwan Jung, Daejeon, KR;
Jung Hyun Noh, Daejeon, KR;
Wan Doo Kim, Daejeon, KR;
Hyun Eui Lim, Daejeon, KR;
Dae Hwan Jung, Daejeon, KR;
Jung Hyun Noh, Daejeon, KR;
Wan Doo Kim, Daejeon, KR;
Korea Institute of Machinery and Materials, Daejeon, KR;
Abstract
A super water repellent surface is prepared by arranging plural spherical beads on a substrate surface to form a (N)-th bead layer, etching the substrate surface with the (N)-th bead layer as an etching mask, arranging plural spherical beads, which are larger than the (N)-th beads in diameter, on the substrate surface to form a (N+1)-th bead layer, etching the substrate surface with the (N+1)-th bead layer as an etching mask, removing the beads from the etched substrate surface and coating a fluorine compound on the substrate surface on which a hierarchical concavo-convex structure has been formed. The (N+1)-th bead layer forming step and the (N+1)-th etching step are repeated N times.