发明授权
US5637760A Preparation of 1,4-butanediol mono(meth)acrylate by esterification of
(meth)acrylic acid with 1,4-butanediol, in which an aqueous solution of
unconverted 1,4-butanediol is obtained
失效
通过（甲基）丙烯酸与1,4-丁二醇的酯化制备1,4-丁二醇单（甲基）丙烯酸酯，其中得到未转化的1,4-丁二醇的水溶液
- 专利标题： Preparation of 1,4-butanediol mono(meth)acrylate by esterification of (meth)acrylic acid with 1,4-butanediol, in which an aqueous solution of unconverted 1,4-butanediol is obtained
- 专利标题（中）： 通过（甲基）丙烯酸与1,4-丁二醇的酯化制备1,4-丁二醇单（甲基）丙烯酸酯，其中得到未转化的1,4-丁二醇的水溶液
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申请号： US541414申请日： 1995-10-10
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公开(公告)号： US5637760A公开(公告)日： 1997-06-10
- 发明人: Toni Dockner , Helmut Lermer , Klaus Bittins , Gerhard Nestler , Gundo Brauch
- 申请人： Toni Dockner , Helmut Lermer , Klaus Bittins , Gerhard Nestler , Gundo Brauch
- 申请人地址： DEX Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX Ludwigshafen
- 优先权： DEX4436241.2 19941011
- 主分类号： B01J27/02
- IPC分类号： B01J27/02 ; C07B61/00 ; C07C67/08 ; C07C67/60 ; C07C69/54 ; C07C67/48
摘要：
1,4-butanediol mono(meth)acrylate is prepared by esterification of (meth)acrylic acid with 1,4-butanediol, by a process in which an aqueous solution of unconverted 1,4-butanediol is obtained, wherein the 1,4-butanediol present in the aqueous solution is converted into readily volatile tetrahydrofuran in the presence of a catalytic amount of a strong acid and the tetrahydrofuran is separated off from the aqueous solution.
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