Liquid crystal compositions
US4138358A · kind A · utility
2Cited by
13References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1977 |
| Grant date | Feb 6, 1979 |
| Priority date | — |
| Expiry date | Sep 2, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Liquid crystal mixtutre of donor and acceptor molecules, the first consisting of a liquid crystal compound having an unshared electron pair (the donor) and the second generally consisting of an electron receptive compound such as a p-cyano-p'-alkyl- or alkoxy-substituted bipheny liquid crystal compound (the acceptor); together these compounds form a molecular complex with improved physical properties, including particularly a broader mesophasic temperature range, then would be expected from a simple combination of such liquid crystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.