METHOD OF MANUFACTURING LIQUID CRYSTALLINE COATING LIQUID

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a coating liquid exhibiting a liquid crystal phase stably for the purpose of providing a suitable coating liquid to form an optically anisotropic film of an oriented lyotropic liquid crystalline compound.

SOLUTION: A pretreated liquid containing a solvent and a crystallization 3 of a lyotropic liquid crystalline compound in the solvent is heated to or above the melting point of the crystallization 3 to produce an isotropic solution, and the isotropic solution is next cooled to or below the temperature in which a liquid crystal phase 4 is developed to produce a liquid crystalline coating liquid. The liquid crystalline coating liquid exhibits the liquid crystal phase 4 stably and is suitable to form an optically anisotropic film of an oriented lyotropic liquid crystalline compound.

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