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:
Oct. 30, 2012
Filed:
Feb. 29, 2008
Mathilde Reyssat, Somerville, MA (US);
Yong Chen, Marcoussis, FR;
Anne Pepin, Paris, FR;
David Quere, Paris, FR;
Claudine Biver, Charenton le Pont, FR;
Laurianne Vagharchakian, Charenton le Pont, FR;
Mathilde Reyssat, Somerville, MA (US);
Yong Chen, Marcoussis, FR;
Anne Pepin, Paris, FR;
David Quere, Paris, FR;
Claudine Biver, Charenton le Pont, FR;
Laurianne Vagharchakian, Charenton le Pont, FR;
Essilor International (Compagnie Generale d'Optique), Charenton Le Pont, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
The invention relates to an article having a nanotextured surface with superhydrophobic properties, comprising an array of vertical tabs, preferably regular, wherein the pillar array fulfils the following conditions: the surface fraction of the pillars Øis such that 3%≦Ø≦13%, preferably 5%≦Ø≦12%, preferably 5%≦Ø≦13%, even better 5.5%≦Ø≦13%, even better 6%≦Ø≦13%, and better still 8%≦Ø≦13%; the pitch p of the array is such that 100 nm≦p≦250 nm; the height h of the pillars is such that 100 nm≦h≦400 nm, preferably 250≦h≦400 nm, even better 300≦h≦400 nm; and the lateral surface of the pillars is inclined at most by an angle of ±20°, preferably ±10° or even better ±5°, in relation to the vertical axis of the pillars.