公开(公告)号：US4604453A

公开(公告)日：1986-08-05

申请号：US714996

申请日：1985-03-22

申请人： Katsuaki Kuze ,  Yuziro Matsuyama ,  Yoshio Yamaoka ,  Ryuichi Murashige ,  Osamu Makimura

发明人： Katsuaki Kuze ,  Yuziro Matsuyama ,  Yoshio Yamaoka ,  Ryuichi Murashige ,  Osamu Makimura

IPC分类号： C08G63/82 ,  C08G63/85 ,  C08G63/87 ,  C08K5/098 ,  C08K5/521 ,  C08G63/70

CPC分类号： C08K5/098 ,  C08G63/82 ,  C08G63/85 ,  C08G63/87 ,  C08K5/521

摘要： A polyester having an initial accumulation electric charge of not less than 2.9 .mu.c/mm.sup.2 when determined in a melt state according to the method as hereinabove defined and a heat resistance of not more than 0.210 when determined according to the method as hereinabove defined, which comprises at least one magnesium compound and at least one phosphorus compound solubilized therein in amounts as satisfying the following formulas:30.ltoreq.[Mg].ltoreq.400 (1)0.8.ltoreq.Mg/P.ltoreq.3 (2)wherein [Mg] is the content (ppm) of the magnesium compound in terms of magnesium atom to the polyester and Mg/P is the atomic ratio of the magnesium atom in the magnesium compound to the phosphorus atom in the phosphorus compound.

摘要翻译： 当根据上述方法在熔融状态下测定时，具有不小于2.9μc/ mm 2的初始蓄电量的聚酯，并且当根据上述方法测定时耐热性不大于0.210， 包含至少一种镁化合物和至少一种溶解在其中的磷化合物，其量满足下式：30 [Mg]≤400（1）0.8

公开(公告)号：US4440924A

公开(公告)日：1984-04-03

申请号：US532624

申请日：1983-09-15

申请人： Katsuaki Kuze ,  Yuziro Matsuyama ,  Hiroshi Hashimoto ,  Takeshi Ohta ,  Osamu Makimura

发明人： Katsuaki Kuze ,  Yuziro Matsuyama ,  Hiroshi Hashimoto ,  Takeshi Ohta ,  Osamu Makimura

IPC分类号： C08G63/82 ,  C08G63/87 ,  C08G63/30

CPC分类号： C08G63/87 ,  C08G63/826

摘要： A process for production of a polyester comprising units of ethylene terephthalate as the major repeating units by supplying terephthalic acid and ethylene glycol continuously or intermittently to bis(beta-hydroxyethyl) terephthalate or its oligomer so as to carry out esterification under a pressure of not more than about 1.0 kg/cm.sup.2, followed by polycondensation, which is characterized in that at least one magnesium compound is incorporated into the reaction system in an amount of about 30 to 400 ppm in terms of Mg to the polyester when the esterification rate in the step of esterification reaches about 20-80% and at least one phosphorus compound is incorporated into the reaction system in an amount as satisfying the following equation (I) at the stage after the esterification rate reaches not less than about 91% and before the termination of the initial condensation in the step of esterification:1.2.ltoreq.Mg/P.ltoreq.20 (I)wherein Mg/P is the atomic ratio of the magnesium atom to the phosphorus atom. The produced polyester shows a high electrostatic adherence.

摘要翻译： 一种通过连续或间歇地向双（β-羟乙基）对苯二甲酸酯或其低聚物供应对苯二甲酸和乙二醇作为主要重复单元的聚对苯二甲酸乙二醇酯单元的生产方法，以在不超过一个压力下进行酯化 约1.0kg / cm 2，然后进行缩聚，其特征在于当步骤中的酯化速率在聚酯中时，至少一种镁化合物以约30-400ppm的量掺入反应体系中 的酯化达到约20-80％，并且在酯化速率达到不低于约91％之后且在终止之前的阶段，至少一种磷化合物以满足以下等式（I）的量引入反应体系中 在酯化步骤中的初始缩合：1.2 Mg / P 20（I）其中Mg / P是镁原子与磷酸根的原子比 原子 所生产的聚酯显示出高的静电附着力。