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公开(公告)号:US07544766B2
公开(公告)日:2009-06-09
申请号:US10540510
申请日:2003-12-23
申请人: Stephan Schlitter , Martin Haubner , Peter Zehner , Michael Hesse , Alexander Weck , Rolf Pinkos , Thomas Graβler
发明人: Stephan Schlitter , Martin Haubner , Peter Zehner , Michael Hesse , Alexander Weck , Rolf Pinkos , Thomas Graβler
IPC分类号: C08G59/00 , C08G65/00 , C08G65/04 , C08G65/06 , C08G65/10 , C08G65/16 , C08G65/20 , C08G59/68 , C08F2/01 , C07C43/04
CPC分类号: C08G65/2654 , C08G65/2657
摘要: The present invention relates to a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymer, diester or monoester by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer and of an acidic heterogeneous catalyst based on activated sheet silicates or mixed metal oxides in a fluidized bed.
摘要翻译: 本发明涉及一种通过在至少一种开环和/或共聚单体存在下使四氢呋喃聚合的基础上制备聚四氢呋喃,聚四氢呋喃共聚物,二酯或单酯的方法,以及基于活化的硅酸盐或混合金属氧化物在流化床 床。