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公开(公告)号：DE102006009150A1
公开(公告)日：2007-09-06
申请号：DE102006009150
申请日：2006-02-24
Applicant: BASF AG
Inventor： PINKOS ROLF , KAESHAMMER STEFAN , GRAF HERMANN , RODEWALD DIETER , WABNITZ TOBIAS , HATSCHER STEPHAN
Abstract: A linear aliphatic ether is present at 0.001-5 wt.% in the reaction mixture when polytetrahydrofuran or a tetrahydrofuran (THF) copolymer is produced by polymerization of THF with an acid catalyst in presence of a telogen and/or a comonomer.
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公开(公告)号：DE50303129D1
公开(公告)日：2006-06-01
申请号：DE50303129
申请日：2003-09-04
Applicant: BASF AG
Inventor： PINKOS ROLF , GERSTLAUER ACHIM , HAUBNER MARTIN , SCHLITTER STEPHAN , KAESHAMMER STEFAN , PFAFF KLAUS-PETER
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：DE10359810A1
公开(公告)日：2005-07-21
申请号：DE10359810
申请日：2003-12-19
Applicant: BASF AG
Inventor： GERSTLAUER ACHIM , HAUBNER MARTIN , SCHLITTER STEPHAN , KAESHAMMER STEFAN
Abstract: A method for the production of mono- and di-esters of poly-tetrahydrofuran (poly-THF) or THF copolymers by polymerisation of THF on an acid catalyst in presence of telogen(s) and/or comonomer(s) (I), in which (I) is/are added to the first reactor of a reactor cascade and the amount of catalyst required for one reactor is divided between all the reactors.
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公开(公告)号：AT269287T
公开(公告)日：2004-07-15
申请号：AT01944991
申请日：2001-03-23
Applicant: BASF AG
Inventor： KAESHAMMER STEFAN , KLEIN ANDREAS , SMITH CHARLES L , MUELLER WINFRIED
Abstract: In a process for finishing neopentyl glycol by cooling, crystallizing and comminuting a neopentyl glycol melt and subsequent packing of the resulting neopentyl glycol particles in storage or transport containers, the melt is cooled at the commencement of cooling for at least 1/10 minutes without use of a coolant or with use of a coolant having a temperature in the range from 50 to 120° C. and the product is packed at a temperature below 30° C.
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公开(公告)号：DE10242286A1
公开(公告)日：2004-03-18
申请号：DE10242286
申请日：2002-09-12
Applicant: BASF AG
Inventor： PINKOS ROLF , GERSTLAUER ACHIM , HAUBNER MARTIN , SCHLITTER STEPHAN , KAESHAMMER STEFAN , PFAFF KLAUS-PETER
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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Patent Agency Ranking
公开(公告)号：DE102006027233A1
公开(公告)日：2007-12-13
申请号：DE102006027233
申请日：2006-06-09
Applicant: BASF AG
Inventor： WABNITZ TOBIAS , HATSCHER STEPHAN , KAESHAMMER STEFAN , PINKOS ROLF
IPC: C08G65/26
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：DE50307478D1
公开(公告)日：2007-07-26
申请号：DE50307478
申请日：2003-07-30
Applicant: BASF AG
Inventor： PINKOS ROLF , KAESHAMMER STEFAN , MENGER VOLKMAR , HAUBNER MARTIN , GROLL PETER , SCHLITTER STEPHAN , PFAFF KLAUS-PETER
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：AT364598T
公开(公告)日：2007-07-15
申请号：AT03797217
申请日：2003-07-30
Applicant: BASF AG
Inventor： PINKOS ROLF , KAESHAMMER STEFAN , MENGER VOLKMAR , HAUBNER MARTIN , GROLL PETER , SCHLITTER STEPHAN , PFAFF KLAUS-PETER
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：DK1373232T3
公开(公告)日：2006-03-27
申请号：DK02735133
申请日：2002-03-15
Applicant: BASF AG
Inventor： HENNINGSEN MICHAEL , KUSCHE ANDREAS , HUELLMANN MICHAEL , RUEB LOTHAR , KAESHAMMER STEFAN , GERLACH TILL
IPC: C07D265/30 , C07D295/02 , A01N43/84 , C07B61/00 , C07D295/023 , 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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公开(公告)号：DE50205051D1
公开(公告)日：2005-12-29
申请号：DE50205051
申请日：2002-07-26
Applicant: BASF AG
Inventor： STEINBRENNER ULRICH , HAUBNER MARTIN , GERSTLAUER ACHIM , DOMSCHKE THOMAS , SIGWART CHRISTOPH , KAESHAMMER STEFAN
Abstract: In a process for the single-stage preparation of polytetrahydrofuran and/or tetrahydrofuran copolymers having a mean molecular weight of from 650 to 5000 dalton by polymerization of tetrahydrofuran over an acid catalyst in the presence of at least one telogen and/or comonomer, the telogen and/or comonomer is added at at least two addition points in different segments of the polymerization apparatus.
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