[EN] METHOD OF PREPARING LIQUID CRYSTALLINE POLYESTER RESIN<br/>[FR] PROCEDE DE PREPARATION DE RESINE DE POLYESTER A CRISTAUX LIQUIDES
申请人:SONGWON IND CO LTD
公开号:WO2003095520A1
公开(公告)日:2003-11-20
Disclosed is a method of preparing a liquid crystalline polyester resin. In the method, an aromatic hydroxycarboxylic acid is mixed with an aromatic hydroxy compound including 2,2'-biphenyl-4,4'-biphenol under a low aliphatic anhydride to perform acylation, and the acylated material is transesterificated to polycondense.