Liquid crystal compounds
US4195916A · kind A · utility
38Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Apr 5, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel liquid crystal compounds are disclosed, which are chiral esters based upon the phenol ##STR1## Typical examples are: ##STR2## and mixtures of these compounds have a helical pitch such that the mixtures reflect light of a specific wavelength when illuminated with ordinary light and the pitch is temperature sensitive so that the mixtures can be used in temperature indicating devices. Specific examples are given as are samples of mixtures that can be used in phase change electro-optic display devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.