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公开(公告)号：DE10314649A1
公开(公告)日：2004-10-14
申请号：DE10314649
申请日：2003-04-01
Applicant: BASF AG
Inventor： HAUBNER MARTIN , PINKOS ROLF , SCHLITTER STEPHAN
Abstract: The present invention relates to a process for the single-stage preparation of polyoxyalkylene glycols by copolymerization of THF and neopentyl glycol in the presence of a heteropolyacid, wherein the total amount of all impurities of the formula (I) where R 1 and R 2 are each hydrogen when R 3 is an oxyformyl or isopropionate radical, R 1 is hydrogen and R 2 is hydroxy when R 3 is an isopropyl radical and R 1 is hydrogen when R 2 and R 3 together form an -OCH 2 -C(CH 3 )-CH 2 - radical, in the neopentyl glycol is less than 1000 ppm.
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公开(公告)号：DE10259136A1
公开(公告)日：2004-07-01
申请号：DE10259136
申请日：2002-12-18
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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33.发明专利
公开(公告)号：AU2003266384A1
公开(公告)日：2004-04-23
申请号：AU2003266384
申请日：2003-09-12
Applicant: BASF AG
Inventor： SCHLITTER STEPHAN , HAUBNER MARTIN , HESSE MICHAEL , KASHAMMER STEFAN , PINKOS ROLF , SIGWART CHRISTOPH
Abstract: The present invention relates to a solid, acid catalyst for the preparation of polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which has a BET surface area of at least 160 m 2 /g and an acid center density of at least 0.05 mmol/g for pK a values of from 1 to 6, to a process for preparing it and to a process for the polymerization of cyclic ethers over this catalyst.
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公开(公告)号：AU2003251667A1
公开(公告)日：2004-03-19
申请号：AU2003251667
申请日：2003-07-30
Applicant: BASF AG
Inventor： HAUBNER MARTIN , PINKOS ROLF , WECK ALEXANDER
Abstract: The present invention provides a process for one-stage preparation of polyoxyalkylene glycols by copolymerizing tetrahydrofuran and alpha,omega-diols in the presence of a heteropolyacid and of a hydrocarbon, which comprises distilling water in a mixture with this hydrocarbon out of the copolymerization.
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公开(公告)号：AU2003218683A1
公开(公告)日：2003-09-22
申请号：AU2003218683
申请日：2003-03-04
Applicant: BASF AG
Inventor： HAUBNER MARTIN , MAASSEN SIEGMAR , FISCHER ROLF-HARTMUTH , SIGWART CHRISTOPH
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Patent Agency Ranking36.发明专利
公开(公告)号：ES2290724T3
公开(公告)日：2008-02-16
申请号：ES04740087
申请日：2004-06-19
Applicant: BASF AG
Inventor： MENGER VOLKMAR , SCHWARTZTRAUBER MICHAEL , HAUBNER MARTIN , PFAFF KLAUS-PETER
IPC: C07D307/08 , C08G65/20 , C08G65/30 , C08G65/331
Abstract: Procedimiento para la obtención de oligómeros de politetrahidrofurano o de copolímeros de tetrahidrofurano a partir de un producto crudo metanólico que contiene copolímeros de politetrahidrofurano o copolímeros de tetrahidrofurano, formado en el transesterificado de mono- y/o diésteres de politetrahidrofurano o copolímeros de tetrahidrofurano con metanol, caracterizado porque a) a partir del producto crudo, en una primera etapa de destilación se separa la cantidad principal de metanol, y en caso dado se devuelve al transesterificado, b) el producto de cola obtenido se separa mediante destilación en una fracción de cabeza que contiene los oligómeros de politetrahidrofurano o de copolímeros de tetrahidrofurano, y politetrahidrofurano o copolímero de tetrahidrofurano, c) a partir de la fracción de cabeza de la etapa b) se condensan los oligómeros de politetrahidrofurano o los copolímeros de tetrahidrofurano.
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公开(公告)号：ES2286503T3
公开(公告)日：2007-12-01
申请号：ES03797217
申请日：2003-07-30
Applicant: BASF AG
Inventor： PINKOS ROLF , KASHAMMER STEFAN , MENGER VOLKMAR , HAUBNER MARTIN , GROLL PETER , SCHLITTER STEPHAN
IPC: C07D307/08 , C08G65/20 , C08G65/26
Abstract: Procedimiento para la obtención en continuo de THF mediante reacción de una mezcla de reacción, que contiene 1, 4-butanodiol, sobre un catalizador de heteropoliácidos no secado previamente, caracterizado porque la mezcla de la reacción contiene por debajo de 1 ppm de componentes nitrogenados básicos y de 2-(4-hidroxibutoxi)-tetrahidrofurano.
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公开(公告)号：AT372331T
公开(公告)日：2007-09-15
申请号：AT04740087
申请日：2004-06-19
Applicant: BASF AG
Inventor： MENGER VOLKMAR , SCHWARTZTRAUBER MICHAEL , HAUBNER MARTIN , PFAFF KLAUS-PETER
IPC: C07D307/08 , 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：DE502004000892D1
公开(公告)日：2006-08-10
申请号：DE502004000892
申请日：2004-03-30
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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公开(公告)号：AT325149T
公开(公告)日：2006-06-15
申请号：AT03813127
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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