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1. 发明申请

WO2007052955A1 METHOD OF PREPARING WHOLLY AROMATIC POLYESTER 审中-公开
标题翻译：制备芳香族聚酯的方法
公开(公告)号：WO2007052955A1
公开(公告)日：2007-05-10
申请号：PCT/KR2006/004515
申请日：2006-11-01
申请人： SAMSUNG FINE CHEMICALS CO., LTD. , KIM, Mahn-Jong , YUN, Jong-Hwa , LEE, Youn-Eung , OK, Tae-Jun , JANG, Sun-Hwa , KIM, Hyun-Min
发明人： KIM, Mahn-Jong , YUN, Jong-Hwa , LEE, Youn-Eung , OK, Tae-Jun , JANG, Sun-Hwa , KIM, Hyun-Min
IPC分类号： C08G63/133 , C08G63/181 , C08G63/88 , C08L67/03
CPC分类号： C08G63/785 , B01F7/00116 , B01F7/00175 , B01F7/00266 , B01F7/00291 , B01F7/00433 , B01J19/1806 , B01J2219/00779 , C08G63/133 , C08G63/605 , C08G63/80 , C08K3/013 , C08K7/00 , C08L67/00 , C08L2205/02
摘要： Provided is a method of preparing a polyester resin suitable for electronic parts having its inherent mechanical strength and heat resistance, in which the amount of byproduct gas generated form molded articles is reduced. That is, provided is a method of preparing wholly aromatic polyester including: mixing monomers, introducing the mixed monomers into a reactor having a rectangular or trapezoidal plate type stirring impeller, and polymerizing the introduced monomers through esterification with a power per unit volume of 10 ~ 60 kW/m 3 , wherein a length (L) to diameter (D) ratio of the stirring impeller is 1 ~ 3 : 1, and a distance between the bottom of the reactor and a lower portion of the stirring impeller is 1/100 ~ 1/15 times of the diameter (D); b) pulverizing the obtained polymer; and c) solid state polymerizing the pulverized polymer. Provided is also a method of preparing wholly aromatic polyester having excellent heat resistant properties in which byproduct is effectively discharged by controlling a heating rate and reaction holding time between the weight loss initiating temperature and the melting point of a low molecular weight polymer generated in a melt polymerization in a solid state polymerization, adhesion does not occur, and discoloration due to heating does not occur. Provided is also a method of preparing a high heat resistant liquid crystal polyester resin composition having improved fluidity and used to form optical pick up parts, etc. by mixing a resin mixture including liquid crystal polyester resin A and liquid crystal polyester resin B, with a fiber and/or flake inorganic filler, wherein the difference of the melting points between liquid crystal polyester resin A and liquid crystal polyester resin B is in a certain range.
摘要翻译：提供一种制备适合于具有固有机械强度和耐热性的电子部件的聚酯树脂的方法，其中减少了由模制品产生的副产物气体的量。也就是说，提供了制备全芳族聚酯的方法，包括：将单体混合，将混合单体引入具有矩形或梯形板式搅拌叶轮的反应器中，并通过酯化反应将引入的单体聚合，每单位体积的10〜 60kW / m 3，其中搅拌叶轮的长度（L）与直径（D）的比为1〜3:1，反应器底部与反应器下部的距离搅拌叶轮直径（D）的1/100〜1/15倍; b）粉碎所得聚合物; 和c）固态聚合粉碎的聚合物。还提供了制备具有优异耐热性能的全芳香族聚酯的方法，其中通过控制在熔体中产生的低分子量聚合物的重量损失起始温度和熔点之间的加热速率和反应保持时间来有效排出副产物在固态聚合中聚合，不发生粘附，并且不会发生由于加热而变色。本发明还提供一种通过将包含液晶聚酯树脂A和液晶聚酯树脂B的树脂混合物与液晶聚酯树脂B混合而制备具有改善的流动性并用于形成光学拾取部件等的高耐热性液晶聚酯树脂组合物的方法，纤维和/或片状无机填料，其中液晶聚酯树脂A和液晶聚酯树脂B之间的熔点差在一定范围内。

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