Optical article comprising an external water- and/or oil-repellent coating coated with a temporary coating
US8153263B2 · kind B2 · utility
0Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2007 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Nov 30, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an optical article comprising on one of the main surfaces thereof an external water- and/or oil-repellent coating, characterized in that a temporary coat of a dried polyurethane latex-based composition is directly deposited onto the external water- and/or oil-repellent coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.