Patent · US Expired

Anti-ferroelectric liquid crystal compounds

US5968413A · kind A · utility

8Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 27, 1998
Grant dateOct 19, 1999
Priority date
Expiry dateJan 27, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/2021
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Novel anti-ferroelectric liquid crystal compounds of the formula (1), ##STR1## wherein R is a linear alkyl group having 6 to 12 carbon atoms, X is a hydrogen atom or a fluorine atom, n is an integer of 2 to 7, p is an integer of 0 to 2 and C* is an asymmetric carbon atom. The above anti-ferroelectric liquid crystal compounds have an anti-ferroelectric phase in a broad temperature range and have a low melting point, so that they can be advantageously used as a main component for a practically valuable liquid crystal material or as a component for a liquid crystal composition.

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