Pyrimidine derivatives
US4883609A · kind A · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1988 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Nov 16, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3469
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Pyrimidine derivatives represented by the general formula: ##STR1## wherein R is a straight chain alkyl group having from 1 to 12 carbon atoms or an alkoxy group having from 1 to 12 carbon atoms. The pyrimidine derivatives are added to nematic liquid crystal compositions to reduce the threshold voltage of display devices by increasing the N.fwdarw.I transition temperature and the dielectric anisotropy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.