3-substituted biphenyl compound
US4818432A · kind A · utility
9Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Apr 27, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/126
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel 3-substituted biphenyl compound useful as a component of chiral liquid crystal compositions useful for light-switching elements by the use of ferroelectric liquid crystals; a chiral liquid crystal composition containing the compound; and a light-switching element utilizing the composition are provided, which compound is expressed by the formula ##STR1## wherein either one of R.sup.1 or R.sup.2 represents an alkyl group of 4 to 18 carbon atoms having a methyl branch and the other thereof represents an alkyl group of 2 to 18 carbon atoms; X represents a halogen atom of F, Cl or Br or cyano group; and l represents 0 to 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.