Optically active cyano-biphenyl compounds and liquid crystal materials containing them
US4077260A · kind A · utility
37Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1976 |
| Grant date | Mar 7, 1978 |
| Priority date | — |
| Expiry date | Aug 20, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13737
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Liquid crystal compounds are disclosed having the formula ##STR1## where p is an integer having a value from 0 to 5 inclusive. These materials are optically active and cholesterogenic and may be used in an electro-optical display device either on their own or in admixture with nematogenic materials having a formula ##STR2## where i has a value from 0 to 5 inclusive and j is 0 or 1. These last mentioned mixtures may be thermochromic and employed in a temperature sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.