发明授权
US4788265A Preparation of copolmers of ethylene with acrylic acid esters in a
tubular reactor at above 500 bar
失效
在500巴以上的管式反应器中制备乙烯与丙烯酸酯的共聚物
- 专利标题： Preparation of copolmers of ethylene with acrylic acid esters in a tubular reactor at above 500 bar
- 专利标题（中）： 在500巴以上的管式反应器中制备乙烯与丙烯酸酯的共聚物
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申请号： US41232申请日： 1987-04-22
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公开(公告)号： US4788265A公开(公告)日： 1988-11-29
- 发明人: Klaus Pfleger , Klaus Boettcher , Oskar Buechner , Friedrich Kanne , Siegfried Kursawe , Wieland Zacher
- 申请人： Klaus Pfleger , Klaus Boettcher , Oskar Buechner , Friedrich Kanne , Siegfried Kursawe , Wieland Zacher
- 申请人地址： DEX
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX3615562 19860509
- 主分类号： C08F2/00
- IPC分类号： C08F2/00 ; C08F2/02 ; C08F2/38 ; C08F210/00 ; C08F210/02 ; C08F220/02 ; C08F220/10
摘要：
Copolymers of ethylene with acrylates or solutions of free acrylic acid in acrylates are prepared in a continuously operated tubular polymerization system at high pressures and temperatures by feeding a mixture of ethylene, acrylate, initiator and, if appropriate, regulant into the polymerization system in the form of a main stream at the inlet point thereof and at the same time through two or more secondary streams, secondary streams (I) being metered in at points where the reaction temperature has just exceeded a maximum temperature due to the heat of polymerization and secondary streams (II) at points which, relative to the direction of flow of the ethylene, are upstream of the feed points of secondary streams (I) and upstream of the respective maximum temperature.
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