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:
Aug. 08, 2017
Filed:
Dec. 26, 2013
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Gerald Fournand, Dallas, TX (US);
Agnes Jallouli, Dudley, MA (US);
Dominique Conte, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE, Charenton-le-Pont, FR;
Abstract
The present invention is dedicated to a method for the manufacture of an optical article comprising the following steps: providing a substrate having two main faces and bearing —OH functions on at least one of its faces, successively exposing one face of the substrate bearing —OH functions to at least 2 distinct materials named M1 and M2, M1 having a weight average molecular weight higher than M2, in a vacuum chamber under conditions resulting in the deposit of those materials on the surface of the substrate, and wherein: M1 is a substituted silane comprising: at least one function X1 bonded to a silicon atom, wherein the Si—X1 group is capable of forming a covalent bond with a —OH group of the substrate and/or a covalent bond with M2, and at least one fluorine containing group, M2 is a substituted silane having a number average molecular weight inferior or equal to 900 g/mol, comprising: at least one function X2 bonded to a silicon atom, wherein the Si—X2 group is capable of forming a covalent bond with a —OH group of the substrate and/or a covalent bond with M1, and at least one hydrophobic and/or oleophobic group, or at least one hydrophilic group, wherein the difference between the weight average molecular weight of M1 and the weight average molecular weight of M2 is higher than or equal to 600 g/mol.