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1.发明申请Method of producing thermotropic liquid crystalline copolyester, thermotropic liquid crystalline copolyester composition obtained by the same method, and molding made of the same composition 失效制造热致液晶共聚酯的方法，通过相同方法获得的热致液晶共聚酯组合物和由相同组成制成的模制品公开(公告)号：US20010014708A1
公开(公告)日：2001-08-16
申请号：US09809520
申请日：2001-03-15
IPC分类号： C08K005/1575 , C08K005/52 , C08L067/02 , C08L067/04
CPC分类号： C08K5/524 , C08G63/605 , C08G63/80 , Y10T428/12007 , Y10T428/12528 , Y10T428/12569 , Y10T428/31681 , Y10T428/31786 , Y10T428/31989 , C08L67/00
摘要： A method of producing a thermotropic liquid crystalline copolyester having an extremely small amount of out-gases comprising the steps of: (1) charging in a reactor 5-100 mol % of aromatic hydroxycarboxylic acid, 0-47.5 mol % of aromatic dicarboxylic acid and 0-47.5 mol % of aromatic diol, so that the sum of mol % of each material is 100 mol % and the mol % of aromatic dicarboxylic acid and that of aromatic diol are substantially equal; (2) adding acetic anhydride of an amount which satisfies the formula, (BnullC)/Anull1.04, nullAnull representing the total molar number of the hydroxy group in a reaction system, nullBnull representing the molar number of acetic anhydride to be added, and nullCnull representing the molar number of water present in the reaction system prior to addition of acetic anhydride; (3) acetylation; (4) melt polymerization; and (5) solid-phase polymerization.
摘要翻译： 一种制造具有极少量外排气体的热致液晶共聚酯的方法，包括以下步骤：（1）在反应器中装入5-100摩尔％的芳族羟基羧酸，0-47.5摩尔％的芳族二羧酸和 0-47.5摩尔％的芳族二醇，使得每种材料的摩尔％的总和为100摩尔％，芳族二羧酸和芳族二醇的摩尔％基本相等; （2）加入满足式（BC）/ A> = 1.04的量的乙酸酐，表示反应体系中羟基的总摩尔数的“A”，代表乙酸酐摩尔数的“B” 并且“C”表示在加入乙酸酐之前反应体系中存在的水的摩尔数; （3）乙酰化; （4）熔融聚合; 和（5）固相聚合。
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