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公开(公告)号:US5342541A
公开(公告)日:1994-08-30
申请号:US329923
申请日:1989-03-29
申请人: Johnny Chavez, Jr. , Andrew S. Farnum , Vaughn M. Nace , Raymond A. Plepys , Randall K. Whitmire , Van A. Kent , Paul D. Bettge , Hans R. Friedli
发明人: Johnny Chavez, Jr. , Andrew S. Farnum , Vaughn M. Nace , Raymond A. Plepys , Randall K. Whitmire , Van A. Kent , Paul D. Bettge , Hans R. Friedli
IPC分类号: B01J31/08 , B01J31/10 , C07B61/00 , C07C41/58 , C07C43/11 , C07C45/26 , C07C45/51 , C07C47/02 , C08G65/04 , C08G65/30 , C08G65/34 , C09K3/00
CPC分类号: C08G65/30 , C07C45/513 , C08G65/04
摘要: The concentration of propenyl ethers in a hydroxy-functional polyether having oxypropylene units is reduced by a process including the step of contacting the polyether with an acid ion exchange resin for a time and at a temperature sufficient for the conversion of at least some of the propenyl ethers to propionaldehyde and in the presence of sufficient water for the conversion. Optionally, the polyether is treated with an epoxy compound in an amount sufficient to reduce the acidity of the polyol.
摘要翻译: 具有氧化丙烯单元的羟基官能聚醚中的丙烯基醚的浓度通过包括使聚醚与酸性离子交换树脂接触一段时间并在足以使至少一些丙烯基转化的温度 醚至丙醛,并在足够的水存在下进行转化。 任选地,聚醚用足以降低多元醇酸度的量的环氧化合物处理。