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1.发明授权VERFAHREN ZUR HERSTELLUNG VON MONO- UND DIESTERN DES POLYTETRAHYDROFURANS UND DER TETRAHYDROFURAN-COPOLYMERE 有权用于生产MONO和聚四氢呋喃和四氢呋喃共聚物的二酯
公开(公告)号：EP1539854B1
公开(公告)日：2006-04-26
申请号：EP03798891.2
申请日：2003-09-04
发明人： PINKOS, Rolf , GERSTLAUER, Achim , HAUBNER, Martin , SCHLITTER, Stephan , KÄSHAMMER, Stefan , PFAFF, Klaus-Peter
IPC分类号： C08G65/20
CPC分类号： C08G65/20
摘要： The invention relates to a method for producing monoesters or diesters of polytetrahydrofuran or of tetrahydrofuran copolymers by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer on an acid catalyst. According to the invention, the polymerization reactor is started up with a mixture consisting of polytetrahydrofuran, the monoesters or diesters of the polytetrahydrofuran and/or of the THF copolymers, tetrahydrofuran, optionally, a comonomer and of at least one carboxylic acid and/or of a carboxylic acid anhydride.
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公开(公告)号：EP1417249A1
公开(公告)日：2004-05-12
申请号：EP02754941.9
申请日：2002-07-26
发明人： STEINBRENNER, Ulrich , HAUBNER, Martin , GERSTLAUER, Achim , DOMSCHKE, Thomas , SIGWART, Christoph , KÄSHAMMER, Stefan
IPC分类号： C08G65/20
CPC分类号： C08G65/2696 , C08G65/20 , C08G65/2666
摘要： The invention relates to a method for the single-stage production of polytetrahydrofuran and/or tetrahydrofuran-copolymers with an average molecular weight of between 650 and 5000 Dalton, by the polymerisation of tetrahydrofuran on an acidic catalyst, in the presence of at least one telogen and/or comonomer. Said method is characterised in that the telogen and/or comonomer is added at a minimum of two dosing points in different sections of the polymerisation apparatus.
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公开(公告)号：EP1417249B1
公开(公告)日：2005-11-23
申请号：EP02754941.9
申请日：2002-07-26
发明人： STEINBRENNER, Ulrich , HAUBNER, Martin , GERSTLAUER, Achim , DOMSCHKE, Thomas , SIGWART, Christoph , KÄSHAMMER, Stefan
IPC分类号： C08G65/20
CPC分类号： C08G65/2696 , C08G65/20 , C08G65/2666
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4.发明公开VERFAHREN ZUR HERSTELLUNG VON MONO- UND DIESTERN DES POLYTETRAHYDROFURANS UND DER TETRAHYDROFURAN-COPOLYMERE 有权用于生产MONO和聚四氢呋喃和四氢呋喃共聚物的二酯
公开(公告)号：EP1539854A1
公开(公告)日：2005-06-15
申请号：EP03798891.2
申请日：2003-09-04
发明人： PINKOS, Rolf , GERSTLAUER, Achim , HAUBNER, Martin , SCHLITTER, Stephan , KÄSHAMMER, Stefan , PFAFF, Klaus-Peter
IPC分类号： C08G65/20
CPC分类号： C08G65/20
摘要： The invention relates to a method for producing monoesters or diesters of polytetrahydrofuran or of tetrahydrofuran copolymers by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer on an acid catalyst. According to the invention, the polymerization reactor is started up with a mixture consisting of polytetrahydrofuran, the monoesters or diesters of the polytetrahydrofuran and/or of the THF copolymers, tetrahydrofuran, optionally, a comonomer and of at least one carboxylic acid and/or of a carboxylic acid anhydride.
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