Stratified phase-separated composite having cross-linked polymeric layer
US6764614B2 · kind B2 · utility
2Cited by
8References
6Claims
0Family size
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Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Aug 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A stratified-phase-separated composite comprises a liquid layer, such as a liquid crystal layer, and a polymeric layer. In order to obtain a more complete stratification resulting in less liquid being present in the polymeric layer, the polymeric layer is crosslinked. The stratified composite is preferably obtained by photo-polymerization induced phase-separation of a phase-separable composition provided on a single substrate or dispersed between two opposite substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.