Mixtures of nematic liquid crystal materials
US4147656A · kind A · utility
4Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1978 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Apr 27, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/48
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Liquid crystal mixtures are disclosed which contain 30-60% of a Schiff's base nematic liquid crystal compound, 25-65% of a second nematic liquid crystal compound selected from the classes of azoxy, ester and biphenyl, and 5-15% of a triphenyl compound to raise the isotropic transition temperature. This combination results in liquid crystal compositions having unexpectedly wide nematic temperature ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.