Method for preparing a latex with photochromic properties and uses thereof, particularly in ophthalmology
US7186359B2 · kind B2 · utility
4Cited by
4References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2001 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Feb 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/23
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a method for preparing a photochromic latex, photochromic thin films obtained therefrom, and articles coated with such thin films, in particular photochromic ophthalmic lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.