公开(公告)号：EP0581074A3

公开(公告)日：1994-10-12

申请号：EP93110878.1

申请日：1993-07-07

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Totani, Yoshiyuki, Mitsui Toatsu Kagaku ,  Hirao, Motokazu ,  Ito, Tomonori, Mitsui Toatsu Kagaku ,  Nakatsuka, Masakatsu ,  Yamaguchi, Akihiro ,  Goto, Ken-Ichi ,  Kuroki, Takashi ,  Mori, Yukiko ,  Obuchi, Shoji ,  Ohta, Masahiro

IPC分类号： C08G64/24

CPC分类号： C08G64/24

摘要： A process for producing continuously an aromatic polycarbonate oligomer by reacting an aromatic dihydroxy compound and an alkali metal base or an alkaline earth metal base with a carbonyl halide compound comprises:
(1) feeding continuously to a tank reactor an aromatic dihydroxy compound, water, a molecular weight controlling agent, a polymerization catalyst, a carbonyl halide compound, and an organic solvent, and an alkali metal base or an alkaline earth metal base in an amount of 1.15 - 1.6 equivalents based on the aromatic dihydroxy compound, (2) carrying out the reaction with a residence time as defined by the following formula, log Y (0.0005 ≦ X
where X is an amount of the polymerization catalyst in terms of mole % based on the amount of mole of the aromatic dihydroxy compound fed per unit time, and Y is a residence time (min.), and (3) continuously withdrawing the reaction mixture from the tank reactor to obtain an aromatic polycarbonate oligomer having a number average molecular weight of 1,000 - 10,000. An aromatic polycarbonate is produced by polycondensation of the aromatic polycarbonate oligomer.

公开(公告)号：EP0769512A2

公开(公告)日：1997-04-23

申请号：EP96116815.0

申请日：1996-10-18

申请人： MITSUI TOATSU CHEMICALS, INC.

发明人： Tamai, Shoji ,  Mori, Yukiko ,  Goto, Kenichi ,  Watanabe, Katsuji ,  Kohgo, Osamu ,  Shimizu, Kotaro ,  Kataoka, Toshiyuki ,  Kuroki, Takashi ,  Yamashita, Wataru ,  Mizuta, Hideki ,  Nagata, Teruyuki

IPC分类号： C08G69/04 ,  C08G69/26 ,  C08G73/10 ,  C08G75/26 ,  C08G63/87 ,  C08G63/82

CPC分类号： C08G73/1007 ,  C08G63/823 ,  C08G63/87 ,  C08G69/04 ,  C08G69/28 ,  C08G75/26

摘要： The invention provides a novel preparation process of a polycondensation type polymer, an excellent polymer which is represented by lactic acid and the preparation process of the polymer, a polycondensation agent used for the preparation process, and an intermediate. Specifically, the invention provides a preparation process of the polycondensation type polymer, for example, polyamide, polyimide, polythioester and polyester, comprising bonding a carboxyl group comprising compound with an active hydrogen group comprising compound in the presence of haloiminium salt. The invention provides excellent polylactic acid having a controlled D/L-isomer ratio in the repeating structural units and preparation process of polylactic acid, and further provides a haloiminium salt compound used for the preparation process and an intermediate compound of acid chloride.

摘要翻译： 本发明提供了一种缩聚型聚合物的新型制备方法，由乳酸代表的优异聚合物和聚合物的制备方法，用于制备方法的缩聚剂和中间体。 具体地说，本发明提供缩聚型聚合物，例如聚酰胺，聚酰亚胺，聚硫酯和聚酯的制备方法，包括在卤代鎓盐的存在下将含羧基的化合物与含有活性氢的化合物结合。 本发明提供了在重复结构单元和聚乳酸的制备方法中具有受控的D / L异构体比例的优异的聚乳酸，并且还提供了用于制备方法的卤代亚铵盐化合物和酰氯的中间体化合物。

公开(公告)号：EP0581074A2

公开(公告)日：1994-02-02

申请号：EP93110878.1

申请日：1993-07-07

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Totani, Yoshiyuki, Mitsui Toatsu Kagaku ,  Hirao, Motokazu ,  Ito, Tomonori, Mitsui Toatsu Kagaku ,  Nakatsuka, Masakatsu ,  Yamaguchi, Akihiro ,  Goto, Ken-Ichi ,  Kuroki, Takashi ,  Mori, Yukiko ,  Obuchi, Shoji ,  Ohta, Masahiro

IPC分类号： C08G64/24

CPC分类号： C08G64/24

摘要： A process for producing continuously an aromatic polycarbonate oligomer by reacting an aromatic dihydroxy compound and an alkali metal base or an alkaline earth metal base with a carbonyl halide compound comprises:

(1) feeding continuously to a tank reactor an aromatic dihydroxy compound, water, a molecular weight controlling agent, a polymerization catalyst, a carbonyl halide compound, and an organic solvent, and an alkali metal base or an alkaline earth metal base in an amount of 1.15 - 1.6 equivalents based on the aromatic dihydroxy compound,
(2) carrying out the reaction with a residence time as defined by the following formula,

log Y
(0.0005 ≦ X

where X is an amount of the polymerization catalyst in terms of mole % based on the amount of mole of the aromatic dihydroxy compound fed per unit time, and Y is a residence time (min.), and
(3) continuously withdrawing the reaction mixture from the tank reactor to obtain an aromatic polycarbonate oligomer having a number average molecular weight of 1,000 - 10,000. An aromatic polycarbonate is produced by polycondensation of the aromatic polycarbonate oligomer.

摘要翻译： 通过使芳族二羟基化合物和碱金属碱或碱土金属碱与羰基卤化合物反应来连续生产芳族聚碳酸酯低聚物的方法包括：（1）连续地向罐式反应器中加入芳族二羟基化合物，水， 分子量控制剂，聚合催化剂，羰基卤化合物和有机溶剂，碱金属碱或碱土金属碱的量为1.15-1.6当量，基于芳族二羟基化合物，（2）进行 具有如下式所定义的停留时间的反应log Y <2.19 X + 1.84（0.0005 69其中X是聚合催化剂的量，以 基于每单位时间进料的芳族二羟基化合物的摩尔量，Y为停留时间（分钟），和（3）从反应器中连续取出反应混合物以获得芳族聚碳酸酯 低聚物的数均分子量为1,000〜10,000。 通过芳族聚碳酸酯低聚物的缩聚制备芳族聚碳酸酯。