Method for improving the edging of an optical article by providing a temporary layer of an organic matter
US11061171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2016 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Feb 10, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.