Patent · US Expired

Liquid crystal compound having methyleneoxy group and composition containing same

US4668427A · kind A · utility

38Cited by
7References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 3, 1985
Grant dateMay 26, 1987
Priority date
Expiry dateSep 3, 2005

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/20
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A novel chiral liquid crystal compound having an optically active group which affords a superior response rate when used as a liquid crystal display element, and a liquid crystal composition containing the same are provided, which chiral liquid crystal compound is expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 18 carbon atoms; R* represents an optically active alkyl group of 4 to 15 carbon atoms; X represents single bond, --O--, ##STR2## Y represents --CH.sub.2 O-- or --OCH.sub.2 --; Z represents single bond, --O--, ##STR3## and m and n each represent 1 or 2.

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