Mesogenic products for liquid crystal cells
US4228087A · kind A · utility
1Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1977 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Dec 5, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/2007
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a family of substances which, in different temperature ranges, exhibit smectic or nematic properties of mesomorphism. Their general formula is: ##STR1## where R designates one of the three radicals: ##STR2## (n being a whole number ranging from 1 to 20) and X designating a halogen (Br preferably) or the nitrile radical C N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.