LIQUID CRYSTAL POLYESTER SOLUTION, MANUFACTURING PROCESS THEREFOR AND LIQUID CRYSTAL POLYESTER FILM OBTAINED BY THE METHOD

摘要

PROBLEM TO BE SOLVED: To prepare a liquid crystal polyester solution having a better productivity, a manufacturing process therefor and a liquid crystal polyester film having a better productivity.;SOLUTION: The liquid crystal polyester solution is obtained by dissolving 0.5-100 pts.wt. of a liquid crystal polyester in 100 pts.wt. of a solvent described below in an atmosphere with an oxygen concentration of ≤5% at a temperature of ≥140°C and ≤200°C. The manufacturing process for the liquid crystal polyester solution comprises dissolving 0.5-100 pts.wt. of the liquid crystal polyester in 100 pts.wt. of a solvent described below in an atmosphere with the oxygen concentration of ≤5% at the temperature of ≥140°C and ≤200°C. The solvent contains a halogen-substituted phenolic compound expressed by formula (I) (wherein, A is a halogen atom or a trihalogenated methyl group; (i) is an integer of 1-5; and when (i) is ≥2, A's may be different from each other or the same).;COPYRIGHT: (C)2006,JPO&NCIPI