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公开(公告)号：DE50312621D1
公开(公告)日：2010-05-27
申请号：DE50312621
申请日：2003-09-12
Applicant: BASF SE
Inventor： SCHLITTER STEPHAN , HAUBNER MARTIN , HESSE MICHAEL , KAESHAMMER 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：AT464119T
公开(公告)日：2010-04-15
申请号：AT03798903
申请日：2003-09-12
Applicant: BASF SE
Inventor： SCHLITTER STEPHAN , HAUBNER MARTIN , HESSE MICHAEL , KAESHAMMER 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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Patent Agency Ranking
公开(公告)号：DE502007001421D1
公开(公告)日：2009-10-08
申请号：DE502007001421
申请日：2007-05-25
Applicant: BASF SE
Inventor： WABNITZ TOBIAS , HATSCHER STEPHAN , KAESHAMMER STEFAN , PINKOS ROLF
IPC: C08G65/20
Abstract: The present invention relates to a process for preparing polytetrahydrofuran or tetrahydrofuran copolymers by polymerization of tetrahydrofuran in the presence of a telogen and/or a comonomer over a fixed bed of an acid catalyst, in which the temperature of the polymerization mixture increases in the direction of flow through the catalyst bed.
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公开(公告)号：DE502006003118D1
公开(公告)日：2009-04-23
申请号：DE502006003118
申请日：2006-11-30
Applicant: BASF SE
Inventor： HATSCHER STEPHAN , HESSE MICHAEL , WABNITZ TOBIAS , KAESHAMMER STEFAN , PINKOS ROLF
Abstract: The present invention provides a catalyst comprising a mixture of at least one acid-activated sheet silicate with a transition metal oxide of groups 8 and/or 9 of the Periodic Table of the Elements and also a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers, in which tetrahydrofuran is polymerized in the presence of at least one telogen and/or comonomer over such a catalyst.
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5.发明专利
公开(公告)号：ES2416058T3
公开(公告)日：2013-07-30
申请号：ES08856062
申请日：2008-11-26
Applicant: BASF SE
Inventor： STAFFEL WOLFGANG , KAESHAMMER STEFAN , KESSINGER ROLAND , VOGELSANG REGINA , PAUL AXEL , TUTTELBERG LEMBIT
IPC: C07D207/267
Abstract: Procedimiento para la obtención de N-vinilpirrolidona mediante reacción de 2-pirrolidona con acetileno,caracterizado porque la 2-pirrolidona empleada como substancia de partida (a continuación llamada 2-pirrolidona departida) contiene menos de 1 parte en peso de γ-butirolactona sobre 100 partes en peso de 2-pirrolidona.
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公开(公告)号：AT425202T
公开(公告)日：2009-03-15
申请号：AT06819860
申请日：2006-11-30
Applicant: BASF SE
Inventor： HATSCHER STEPHAN , HESSE MICHAEL , WABNITZ TOBIAS , KAESHAMMER STEFAN , PINKOS ROLF
Abstract: The present invention provides a catalyst comprising a mixture of at least one acid-activated sheet silicate with a transition metal oxide of groups 8 and/or 9 of the Periodic Table of the Elements and also a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers, in which tetrahydrofuran is polymerized in the presence of at least one telogen and/or comonomer over such a catalyst.
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公开(公告)号：HU229332B1
公开(公告)日：2013-11-28
申请号：HU0303478
申请日：2002-03-15
Applicant: BASF SE
Inventor： HENNINGSEN MICHAEL , KUSCHE ANDREAS , HUELLMANN MICHAEL , RUEB LOTHAR , KAESHAMMER STEFAN , GERLACH TILL DR
IPC: C07D265/30 , C07D295/023 , A01N43/84 , C07B61/00 , C07D295/02 , C07D295/03 , C07D295/033
Abstract: The present invention relates to a process for the preparation of N-substituted 2,6-dialkylmorpholines of the formula I in which R 1 and R 2 , independently of one another, are hydrogen, alkyl or cycloalkyl, or R 1 and R 2 together with the carbon atom to which they are bonded are a 5- to 14-membered carbocycle, and R 3 and R 4 , independently of one another, are alkyl or cycloalkyl, by reacting at least one carbonyl compound of the formula II in which R 1 and R 2 have the meanings given above, with at least one morpholine of the formula III in which R 3 and R 4 have the meanings given above, in the presence of hydrogen and at least one metal-containing catalyst, wherein the active component of the catalyst consists essentially of platinum group metals.
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