Patent · US Expired

2-phenylpyridine derivatives and liquid crystal compositions including same

US4879060A · kind A · utility

12Cited by
12References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 22, 1987
Grant dateNov 7, 1989
Priority date
Expiry dateMay 22, 2007

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/42
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

2-phenylpyridine derivatives represented by the general formula: ##STR1## wherein when Y is R--, Z is one of R--, RO--, ##STR2## when Y is RO--, Z is one of straight chain pentyl, ##STR3## and when Y is one of Z is one of R--, RO-- and --CN; when Y is --CN, Z is one of RO--, ##STR4## and R is a straight chain alkyl group from 1 to 12 carbon atoms, are disclosed. The 2-phenylpyridine derivatives in accordance with the invention are particularly well-suited for use in nematic liquid crystal compositions for reducing the steepness and response time of the liquid crystal compositions in a liquid crystal display device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.