公开(公告)号：US3651016A

公开(公告)日：1972-03-21

申请号：US3651016D

申请日：1967-12-21

申请人： ALPINE CHEMISCHE AG

发明人： HRACH JOSEF ,  WIMMER THEODOR

IPC分类号： B01J21/00 ,  B01J23/14 ,  B01J23/18 ,  C08G63/82 ,  C08G63/83 ,  C08G63/85 ,  C08G17/013

CPC分类号： C08G63/85 ,  B01J21/00 ,  B01J23/14 ,  B01J23/18 ,  C08G63/82 ,  C08G63/83

摘要： FILM- AND FILAMENT-FORMING COLOR-STABLE POLYESTERS OR COPOLYESTERS OF DICARBOSYLIC ACIDS, SUCH AS TEREPHTHALIC, ISO-PHTHALIC, DIPHENYLDICARBOXYLIC AND ADIPIC ACIDS, AND A DIOL, SUCH AS ETHYLENE GLYCOL, 1,4-BIS (HYDROXY METHYL) CYCLOHEXANE AND BIS-PHENOL-A-DIGLYCOLETHER, ARE REACTED UNDER POLYMERIZING CONDITIONS IN THE ABSENCE OF OXYGEN AND IN THE PRESSURE OF A POLYMERIZATION CATALYST CONSISTING OF A MIXTURE OF (A) METALLIC ANTIMONY, (B) METALLIC LEAD, AND (C) METALLIC ZINIC. INSTEAD OF A DICARBOXYLIC ACID, A FUNCTIONAL, POLYESTER-FORMING DERIVATIVE THEREOF MAY BE USED, PREFERABLY THE DIMETHYL ESTER. THE LEAD COMPONENT (B) OF THE CATALYST MAY BE REPLACED IN WHOLE OR PART BY TIN, AND THE CATALYST PREFERABLY IS IN THE FORM OF AN ALLOY.