Method for the production of an optical article with improved anti-fouling properties
US9637643B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 2013 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Dec 24, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
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 in this order one face of the substrate bearing —OH functions to at least 3 distinct materials named M1, M2, M3 and optionally material M4 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 directly bonded to a Si atom of the substituted silane, wherein the Si—X1 group is capable of forming a covalent bond with a OH group of the substrate, X1 being preferably a hydrolysable group (such a —NH2 group) or a —OH group directly bonded to the silicon atom and comprising at least one fluorine containing group, —M2 is a substituted silane of number average molecular weight inferior or equal to 900 g/mol comprising at least one function X2 directly bonded to a silicon atom of said substituted silane 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, X2 being preferably a hydro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.