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公开(公告)号：DE50303257D1
公开(公告)日：2006-06-08
申请号：DE50303257
申请日：2003-12-16
Applicant: BASF AG
Inventor： HAUBNER MARTIN , PINKOS ROLF
Abstract: The present invention provides a process for preparing polyoxyalkylene glycols of a certain molecular weight in one stage by copolymerizing tetrahydrofuran and alpha,omega-diols as the comonomer in the presence of a heteropolyacid and of a hydrocarbon, by distilling off a mixture of water and this hydrocarbon from the copolymerization, which comprises terminating the polymerization when this molecular weight is attained by adding water, comonomer, butanediol or butanediol-water mixtures.
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公开(公告)号：DE102004012116A1
公开(公告)日：2005-09-22
申请号：DE102004012116
申请日：2004-03-12
Applicant: BASF AG
Inventor： PINKOS ROLF , HAUBNER MARTIN
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公开(公告)号：DE102004012114A1
公开(公告)日：2005-09-22
申请号：DE102004012114
申请日：2004-03-12
Applicant: BASF AG
Inventor： PINKOS ROLF , HAUBNER MARTIN , MENGER VOLKMAR
IPC: B01J27/188 , B01J27/199 , C07D307/08
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公开(公告)号：DE10330721A1
公开(公告)日：2005-01-27
申请号：DE10330721
申请日：2003-07-08
Applicant: BASF AG
Inventor： MENGER VOLKMAR , SCHWARZTRAUBER MICHAEL , HAUBNER MARTIN , PFAFF KLAUS-PETER
IPC: C08G65/20 , C08G65/30 , C08G65/331
Abstract: A process for obtaining oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers from a methanolic crude product which contains polytetrahydrofuran or tetrahydrofuran copolymers and is obtained in the transesterification of the mono- and/or diesters of polytetrahydrofuran or tetrahydrofuran copolymers with methanol, which includes a) removing the majority of the methanol from the crude product in a first distillation stage, b) separating the resulting bottom product by distillation into a top fraction containing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers, and polytetrahydrofuran or tetrahydrofuran copolymer, and c) condensing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers out of the top fraction from stage b).
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公开(公告)号：DE10314648A1
公开(公告)日：2004-10-14
申请号：DE10314648
申请日：2003-04-01
Applicant: BASF AG
Inventor： HAUBNER MARTIN , PINKOS ROLF
Abstract: The present invention relates to a process for the single-stage preparation of polyoxyalkylene glycols by copolymerization of THF and alpha, omega-diols in the presence of a heteropolyacid, wherein the content of organically bound nitrogen in the alpha, omega-diol is less than 15 ppm.
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Patent Agency Ranking
公开(公告)号：AU2003296717A8
公开(公告)日：2004-07-22
申请号：AU2003296717
申请日：2003-12-21
Applicant: BASF AG
Inventor： HESSE MICHAEL , GRASSLER THOMAS , ZEHNER PETER , SCHLITTER STEPHAN , WECK ALEXANDER , PINKOS ROLF , HAUBNER MARTIN
Abstract: 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.
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公开(公告)号：AU2003300524A1
公开(公告)日：2004-07-09
申请号：AU2003300524
申请日：2003-12-16
Applicant: BASF AG
Inventor： HAUBNER MARTIN , PINKOS ROLF
Abstract: The present invention provides a process for preparing polyoxyalkylene glycols of a certain molecular weight in one stage by copolymerizing tetrahydrofuran and alpha,omega-diols as the comonomer in the presence of a heteropolyacid and of a hydrocarbon, by distilling off a mixture of water and this hydrocarbon from the copolymerization, which comprises terminating the polymerization when this molecular weight is attained by adding water, comonomer, butanediol or butanediol-water mixtures.
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48.发明专利
公开(公告)号：AU2003258701A1
公开(公告)日：2004-04-23
申请号：AU2003258701
申请日：2003-09-04
Applicant: BASF AG
Inventor： KASHAMMER STEFAN , PFAFF KLAUS-PETER , PINKOS ROLF , GERSTLAUER ACHIM , HAUBNER MARTIN , SCHLITTER STEPHAN
IPC: C08G65/20
Abstract: Process for preparation of mono- or diesters of tetrahydrofuran homo- or copolymer by polymerisation of tetrahydrofuran in the presence of at least one telogen and/or comonomers using an acid catalyst where the polymerisation reactor is started with a mixture of polytetrahydrofuran, its mono- or diester and /or tetrahydrofuran copolymer, tetrahydrofuran, optionally a copolymer and at least one carboxylic acid and/or a carboxylic acid anhydride is new.
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公开(公告)号：AU2003251666A1
公开(公告)日：2004-04-08
申请号：AU2003251666
申请日：2003-07-30
Applicant: BASF AG
Inventor： GROLL PETER , SCHLITTER STEPHAN , PFAFF KLAUS-PETER , PINKOS ROLF , KASHAMMER STEFAN , MENGER VOLKMAR , HAUBNER MARTIN
IPC: C07D307/08 , C08G65/20 , C08G65/26
Abstract: A process for the continuous production of tetrahydrofuran (THF) by reaction of a 1,4-butanediol reaction mixture at a heteropolyacid catalyst that has not been pre-dried is characterized in that the reaction mixture contains 2-(4-hydroxybutoxy)tetrahydrofuran.
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公开(公告)号：AU2003258545A1
公开(公告)日：2004-03-19
申请号：AU2003258545
申请日：2003-07-30
Applicant: BASF AG
Inventor： PINKOS ROLF , HESSE MICHAEL , HAUBNER MARTIN , SCHLITTER STEPHAN
IPC: B01J23/80 , B01J37/18 , C08G65/322 , C08G65/331 , C08G65/20 , B01J23/00 , C08G65/10 , C08G65/26
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