Phenyl naphthalenes having liquid crystalline properties
US5252253A · kind A · utility
9Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Jul 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/322
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
##STR1## Novel phenyl naphthalenes of general formula (I) wherein R.sub.1 and R.sub.2 are selected from C.sub.1-15 alkyl, alkoxyl, perfluoroalkyl, perfluoroalkoxyl and alkynyl, R.sub.1 may also be CN and R.sub.2 may also be fluorine or NCS; m is 0, 1 or 2 provided that if R.sub.1 is alkyl or alkoxyl and R.sub.2 is alkyl, alkoxyl, perfluoroalkyl or CN then m is 1 or 2. These have liquid crystalline characteristics and may be used as constituents of both nematic and smectic C liquid crystal materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.