发明名称 |
Method for making tris (hydroxyphenyl) compounds using ion exchange resins |
摘要 |
<p>An improved method for the preparation of tris(4-hydroxyphenyl) compounds is provided. In particular, an improved method for preparing 1, 1,1-tris(4'-hydroxyphenyl)ethane is provided which comprises heating a mixture comprising phenol and 4-hydroxy acetophenone in the presence of effective amounts of an ion exchange catalyst and a mercaptan as a copromoter such that the resulting 1, 1, 1-tris(4'-hydroxyphenyl)ethane is substantially free of various reaction impurities.</p> |
申请公布号 |
EP0765852(B1) |
申请公布日期 |
2006.07.26 |
申请号 |
EP19960306990 |
申请日期 |
1996.09.25 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
SYBERT, PAUL DEAN;KISSINGER, GAYLORD MICHAEL;MENDIRATTA, ASHOK KUMAR |
分类号 |
B01J31/08;C07C37/20;C07B61/00;C07C39/15;C07C39/16 |
主分类号 |
B01J31/08 |
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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