发明名称 |
Zeolith-Katalysator zur Polykondensation von Polyester |
摘要 |
A zeolite polycondensation catalyst comprising an alkali- or alkaline earth metal aluminum silicate zeolite having an original water content of 12 to 30 weight % and a solubility, measured at 260 DEG C., in an esterification mixture consisting essentially of bis(hydroxy ethylene)terephthalate, of over 8.0 weight %, and an average particle size of less than 1.0 mu . The present invention is also a process for the production of polyester using this catalyst. |
申请公布号 |
DE19638549(A1) |
申请公布日期 |
1998.03.26 |
申请号 |
DE1996138549 |
申请日期 |
1996.09.20 |
申请人 |
ZIMMER AG, 60388 FRANKFURT, DE |
发明人 |
THIELE, ULRICH, DR., 63486 BRUCHKOEBEL, DE |
分类号 |
B01J29/072;C08G63/82 |
主分类号 |
B01J29/072 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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