Stratified phase-separated composite comprising a photo-polymerization dye
US6818152B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Oct 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A stratified-phase-separated composite comprising a polymeric layer and a liquid layer is obtained by photo-polymerizing a composition comprising a liquid and a photo-polymerizable monomer. In order to obtain well-stratified composites which may contain liquid which does not absorb radiation used to photo-polymerize, the composition and composite comprises a dye which is adapted to absorb radiation used to carry out the photo-polymerization and which selectively accumulates in the polymeric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.