公开(公告)号：US4749775A

公开(公告)日：1988-06-07

申请号：US70553

申请日：1987-07-07

申请人： Tetsuro Takeya ,  Tatsuya Tomioka ,  Shigeru Murakami ,  Kenkichi Takahashi

发明人： Tetsuro Takeya ,  Tatsuya Tomioka ,  Shigeru Murakami ,  Kenkichi Takahashi

IPC分类号： C08G63/68 ,  C07D209/48 ,  C08G63/60 ,  C08G63/685 ,  C08G73/16 ,  C08G69/44 ,  C07D209/02

CPC分类号： C07D209/48 ,  C08G63/60 ,  C08G63/685 ,  C08G73/16

摘要： Polyester polymers consisting essentially of repeating units having the formula ##STR1## repeating units having the formula--O--Ar.sup.1 --CO-- [II],repeating units having the formula--O--Ar.sup.2 --O-- [III],and repeating units having the formula ##STR2## wherein Ar.sup.1 is selected from ##STR3## Ar.sup.2 is selected from ##STR4## halogen substituted radicals of these radicals, and ##STR5## wherein X is selected from --O--, --S--, --SO.sub.2 --, --CO--, --O(CH.sub.2).sub.n O--.--CH.sub.2).sub.n, and ##STR6## wherein each n independently represents a member having a value of from 1 to 10, and each R.sup.4 is independently selected from alkyl radicals of 1 to 5 carbon atoms, andR.sup.2 and R.sup.3 are independently selected from hydrogen atom, halogen radicals, alkyl radicals of 1 to 5 carbon atoms, and phenyl radical, and R.sup.2 and R.sup.3 may be identical or different from each other, andR.sup.1 is selected from halogen radicals and alkyl radicals of 1 to 5 carbon atoms, and wherein the polyester polymer has a reduced viscosity [.eta.sp/c] of at least 0.2 dl/g as measured in p-chlorophenol at a concentration of 0.2 g/dl at 60.degree. C.Such polyester polymers are excellent in the mechanical strength and heat resistance and, therefore, are useful as various kinds of fibers, films, or engineering plastics. A process for preparing the polyester polymer and novel diimide-dicarboxylic acid to be used as a material in this process are also disclosed.

摘要翻译： 主要由具有下式的重复单元组成的聚酯聚合物[I]具有式-O-Ar1-CO- [II]的重复单元，具有式-O-Ar2-O- [III]的重复单元，并重复 具有式[IMAGE] [IV]的单元其中Ar1选自 + TR Ar2选自这些基团的卤素取代的基团，其中 X选自-O - ， - S - ， - SO 2 - ， - CO - ， - O（CH 2）n O - ， - CH 2）n和其中每个n独立地表示具有1 并且每个R 4独立地选自1至5个碳原子的烷基，并且R 2和R 3独立地选自氢原子，卤素基团，1至5个碳原子的烷基和苯基，以及R 2和R 3 可以相同或不同，并且R 1选自卤素基团和1至5个碳原子的烷基，并且其中聚酯聚合物具有降低的粘度[η] 在60℃下在对氯苯酚中以0.2g / dl的浓度测量为至少0.2dl / g。这种聚酯聚合物的机械强度和耐热性优异，因此可用作各种纤维， 电影或工程塑料。 还公开了用于制备聚酯聚合物的方法和用于该方法中的材料的新型二酰亚胺 - 二羧酸。

公开(公告)号：US5756654A

公开(公告)日：1998-05-26

申请号：US701175

申请日：1996-08-21

申请人： Kiyoshi Sase ,  Kohji Namiki ,  Tetsuro Takeya

发明人： Kiyoshi Sase ,  Kohji Namiki ,  Tetsuro Takeya

IPC分类号： C08G75/02 ,  C08G75/04 ,  C08G75/06 ,  C08G75/16

CPC分类号： C08G75/0272

摘要： Disclosed is a process for manufacturing polyarylene sulfide comprising pre-polymerizing a dihalogeno-aromatic compound with a liquid or gaseous sulfur compound in the presence of a lithium compound in an aprotic organic solvent followed by further polymerizing the resulting pre-polymerized system; which is characterized in that sufficient water is added to the pre-polymerized solution (I) to separate it into a tick polymer phase and a solvent phase, then a solvent is added to the thus-separated, thick polymer phase and the resulting polymer phase is further polymerized, for efficiently manufacturing high-purity polyarylene sulfide. The process does not require any complicated steps of washing the polymer with a multi-stage washing system and is free from the increase in the production costs of the polymer. In the process, the lithium salt used can be recovered efficiently.

摘要翻译： 公开了一种制备聚芳硫醚的方法，其包括在非质子有机溶剂中在锂化合物存在下将二卤代芳族化合物与液体或气态硫化合物进行预聚合，然后进一步聚合所得预聚合体系; 其特征在于向预聚合溶液（I）中加入足够的水以将其分离成蜱聚合物相和溶剂相，然后将溶剂加入到如此分离的稠聚合物相中，并将所得聚合物相 进一步聚合，用于有效地制造高纯度聚芳硫醚。 该方法不需要用多级洗涤系统洗涤聚合物的任何复杂步骤，并且不会增加聚合物的生产成本。 在此过程中，所使用的锂盐可以有效回收。