Cholesteric liquid crystal composition

Abstract

Abstract PURPOSE:The titled industrially advantageously obtainable composition useful as a display element, etc., containing hydroxyethyl cellulose having a mol substitution degree of hydroxyethyl group per anhydrous glucose unit of >= a specific value as a liquid crystal component. CONSTITUTION:Hydroxyethyl cellulose (having preferably 0.3-7dl/g intrinsic viscosity) having a mol substitution degree of hydroxyethyl group per anhydrous glucose unit of >=6 is dissolved in preferably water, an organic solvent (e.g., ethylene glycol, etc.,) or an aqueous solution of organic solvent, to give the aimed composition. The hydroxyethyl cellulose, for example, is obtained by repeatedly reacting crystallite with ethylene oxide in an organic solvent (e.g., water-t-butyl alcohol mixed solvent) in the presence of an alkali.

Inventors

• 👤 Hiroshi Yokota
• 👤 横田　拓

Bibliographic Details