发明名称 |
TITANIUM/ZIRCONIUM CATALYSTS AND USE THEREOF FOR PRODUCTION OF ESTERS OR POLYESTERS |
摘要 |
The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed orthoesters of titanium and/or zirconium, with one or more polyalcohols. Suitable polyalcohols comprise those compounds having at least two hydroxyl groups and a number average molecular weight of at least 180 g/mol. The invention also relates to a process for preparing (poly)esters from these novel catalysts, which exhibit little discoloration and are suitable to be used as a reaction component in the preparation of polyurethane (PUR) foams. |
申请公布号 |
EP1339774(B1) |
申请公布日期 |
2008.01.23 |
申请号 |
EP20010998579 |
申请日期 |
2001.11.19 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
HOFFMANN, ANDREAS;NEFZGER, HARTMUT;BAUER, ERIKA |
分类号 |
C08G63/85;B01J31/22;B01J31/38;C08G18/42 |
主分类号 |
C08G63/85 |
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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