Patent · US Expired

Liquid-crystalline compounds

US4507222A · kind A · utility

16Cited by
8References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 1983
Grant dateMar 26, 1985
Priority date
Expiry dateMar 15, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/3003
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Compounds useful as lower viscosity liquid-crystalline components of which liquid-crystalline compositions are partly composed are provided, which compounds are PA0 liquid-crystalline compounds expressed by the general formula ##STR1## wherein ##STR2## and R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms, or PA0 liquid-crystalline compounds expressed by the general formula ##STR3## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms.

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