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1.发明公开Catalyst composition for producing polyethylene terephthalate from terephthalic acid and ethylene glycol, and process therefore 有权该催化剂用于由对苯二甲酸和乙二醇和它们的方法制备聚对苯二甲酸乙酯的组合物
公开(公告)号：EP1574539A1
公开(公告)日：2005-09-14
申请号：EP04005822.4
申请日：2004-03-11
CPC分类号： C08G63/866 , C08G63/183 , C08G63/80 , C08G63/83
摘要： The present invention relates to a catalyst composition for producing polyethylene terephthalate from terephthalic acid and ethylene glycol, comprising:
(i) an antimony compound, being present such that the elemental antimony is in a range of about 15 ppm to less than 150 ppm;
(ii) a zinc compound, being present such that the elemental zinc is in a range of about 40 to about 160 ppm;
as well as a process for the preparation thereof.摘要翻译： 本发明涉及催化剂组合物用于由对苯二甲酸和乙二醇生产聚对苯二甲酸乙酯，包括：（i）锑化合物，存在调查所做的元素锑是在以低于150ppm的范围约15ppm的; （ⅱ）锌化合物，存在调查所做的元素锌是在范围为约40至约160 ppm的; 以及用于其制备的方法。
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2.发明授权Catalyst composition for producing polyethylene terephthalate from terephthalic acid and ethylene glycol, and process therefore 有权该催化剂用于由对苯二甲酸和乙二醇和它们的方法制备聚对苯二甲酸乙酯的组合物
公开(公告)号：EP1574539B1
公开(公告)日：2007-04-25
申请号：EP04005822.4
申请日：2004-03-11
CPC分类号： C08G63/866 , C08G63/183 , C08G63/80 , C08G63/83
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