"Liquid crystalline 4""-cyano- or 4""-nitrobenzylidene-4'-(N,N-dialkylamino)-1-aminoazabenzene dyes"
US4105654A · kind A · utility
6Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Nov 12, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B56/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein Y and Z are different and one is nitro or cyano and the other is --N(R).sub.2 wherein R is alkyl or alkylene, preferably of 1 to 4 carbon atoms, and X can be hydrogen, methyl, fluoro or chloro, are dyes having liquid crystal properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.