公开(公告)号：EP1270641A3

公开(公告)日：2003-04-23

申请号：EP02250584.6

申请日：2002-01-29

申请人： Atofina Chemicals, Inc.

发明人： Dowling, Conor M. ,  Seshadri, Sri ,  Chen, Bin

IPC分类号： C08G63/85 ,  C08G63/86 ,  B01J31/26 ,  B01J31/22

CPC分类号： C08G63/85 ,  B01J21/063 ,  B01J31/04 ,  B01J31/2239 ,  B01J31/26 ,  B01J2531/0205 ,  B01J2531/10 ,  B01J2531/20 ,  B01J2531/46 ,  B01J2531/52 ,  C08G63/82 ,  C08G63/83 ,  C08G63/84 ,  C08G63/87

摘要： The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic composition containing a titanyl oxalate catalyst and a metallic oxalate catalyst enhancer and optionally containing a metallic cocatalyst such as an antimony based catalyst. A synergistic relationship has been discovered between titanyl oxalate catalyst and the catalyst enhancer. A synergistic relationship has also been discovered between the titanyl oxalate catalyst, catalyst enhancer and a metallic cocatalyst such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by the polycondensation of polyester forming reactants in the presence of a catalytically effective amount of a polycondensation catalyst, wherein the improvement comprises utilizing as the polycondensation catalyst, the novel catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer such as a nontitanyl metallic oxalate like lithium oxalate and optionally containing a metallic catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate/catalyst enhancer composition can be used as a polycondensation catalyst in combination with other catalysts to achieve synergistic catalytic activity. Preferred is a combination of lithium or potassium titanyl oxalate, Li 2 or K 2 TiO(C 2 O 4 ) 2 , lithium or potassium oxalate, Li 2 or K 2 (C 2 O 4 ) 2 with antimony oxide or antimony triacetate or antimony trisglycoxide.

公开(公告)号：EP1270641A2

公开(公告)日：2003-01-02

申请号：EP02250584.6

申请日：2002-01-29

申请人： Atofina Chemicals, Inc.

发明人： Dowling, Conor M. ,  Seshadri, Sri ,  Chen, Bin

IPC分类号： C08G63/85 ,  C08G63/86 ,  B01J31/26 ,  B01J31/22

CPC分类号： C08G63/85 ,  B01J21/063 ,  B01J31/04 ,  B01J31/2239 ,  B01J31/26 ,  B01J2531/0205 ,  B01J2531/10 ,  B01J2531/20 ,  B01J2531/46 ,  B01J2531/52 ,  C08G63/82 ,  C08G63/83 ,  C08G63/84 ,  C08G63/87

摘要： The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic composition containing a titanyl oxalate catalyst and a metallic oxalate catalyst enhancer and optionally containing a metallic cocatalyst such as an antimony based catalyst. A synergistic relationship has been discovered between titanyl oxalate catalyst and the catalyst enhancer. A synergistic relationship has also been discovered between the titanyl oxalate catalyst, catalyst enhancer and a metallic cocatalyst such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by the polycondensation of polyester forming reactants in the presence of a catalytically effective amount of a polycondensation catalyst, wherein the improvement comprises utilizing as the polycondensation catalyst, the novel catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer such as a nontitanyl metallic oxalate like lithium oxalate and optionally containing a metallic catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate/catalyst enhancer composition can be used as a polycondensation catalyst in combination with other catalysts to achieve synergistic catalytic activity. Preferred is a combination of lithium or potassium titanyl oxalate, Li 2 or K 2 TiO(C 2 O 4 ) 2 , lithium or potassium oxalate, Li 2 or K 2 (C 2 O 4 ) 2 with antimony oxide or antimony triacetate or antimony trisglycoxide.

摘要翻译： 本发明是基于以下发现确实nontitanyl草酸盐能增强上草酸氧钛催化剂的催化功能。 本发明提供一种新颖的催化剂组合物含一草酸氧钛催化剂和金属草酸盐增强剂和催化剂任选地含有助催化剂金属：如基于催化剂锑。 协同关系一直草酸氧钛催化剂和催化剂增强剂之间发现。 一种协同关系也因此被发现的草酸氧钛催化剂，催化剂增强剂和金属助催化剂之间：如氧化锑或三乙酸锑。 所以被提供给改进通过在催化有效量的缩聚催化剂的存在下形成聚酯的反应物的缩聚制造聚酯，worin改进包括利用作为缩聚催化剂，该新型催化剂组合物含一草酸氧钛的过程：例如锂 草酸氧钛和催化剂促进剂：诸如nontitanyl金属草酸盐等草酸锂和任选含有的金属催化剂：如氧化锑或三乙酸锑。 的改进的方法产生一种具有低乙醛号码和良好的颜色改进的聚酯。 的草酸氧钛/催化剂促进剂组合物可被用作缩聚催化剂在组合与其它催化剂，以实现协同催化活性。 优选的是锂或钛氧基乙二酸钾，LI2或K2TiO（C2O4）2，锂或钾草酸盐，LI2或K2（C2O4）2与氧化锑或三乙酸锑或锑trisglycoxide的组合。