Liquid crystal compounds, mixtures and devices
US5595682A · kind A · utility
8Cited by
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11Claims
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Key dates
| Filing date | Apr 18, 1995 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | Apr 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Liquid crystal compounds having the formula (I) ##STR1## in which A.sub.1 is alkyl, alkoxy or alkenyl; X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are independently halogens, m, n, p and q are independently 0, 1, 2, 3 or 4 such that m+n+p+q.noteq.0; Y is O or COO; and A.sub.2 is an end group of the formula (II), ##STR2## where Z is halogen, CH.sub.3, CN, CF.sub.3 or, CHF.sub.2 ; R is a linear or branched alkyl group or H; and R.sub.1 is a linear or branched alkyl group or H.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.