Liquid-crystal composition and polymeric liquid crystal obtained by polymerizing the same
US6180028A · kind A · utility
11Cited by
13References
14Claims
0Family size
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Key dates
| Filing date | Mar 31, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
High molecular liquid crystal obtained by photopolymerizing a liquid crystal composition which comprises CH.sub.2.dbd.CHCOO--X--OC.sub.6 H.sub.4 --C.sub.6 H.sub.4 CN (X is an alkylene group) and CH.sub.2.dbd.CHCOOC.sub.6 H.sub.4 --C.sub.6 H.sub.4 CN. An optical element which is a polarized hologram element made by using the high molecular liquid crystal and an optical head having the polarized hologram element as a beam splitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.