1,3-dioxane derivatives and composition including same

Details 1,3-dioxane derivatives and composition including same 1,3-dioxane derivatives and composition including same

1990-03-20

1991-06-25

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

25229961, C07D31906, G02F 113, C09K 324

Patent

active

050268791

ABSTRACT:
2-(3', 4'-difluorophenyl)-1,3-dioxane derivatives represented by the general formula: ##STR1## wherein R is a linear alkyl group having from 1 to 8 atoms, and having large positive dielectric constant anisotropy (.DELTA..epsilon.) and small refractive index anisotropy (.DELTA.n). The dioxane derivatives may be included in liquid crystal compositions for improved display devices having a low threshold voltage, a low driving voltage and a wide visual angle.

REFERENCES:
patent: 4323473 (1982-04-01), Sethofer
patent: 4323504 (1982-04-01), Sethofer
patent: 4348324 (1982-09-01), Demus et al.
patent: 4871469 (1989-10-01), Reiffenrath et al.

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