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公开(公告)号：DE2749754A1
公开(公告)日：1979-05-10
申请号：DE2749754
申请日：1977-11-07
Applicant: BASF AG
Inventor： FISCHER KARL DR , HIMMELE WALTER DR , KAIBEL GERD DIPL ING , BARL MANFRED DR , SCHNEIDER KURT DR
Abstract: In the prodn. of carbonate esters (I) of the formula O=C(-O-R)2 (in which R is an organic radical with at least 2C) by ester interchange of dimethyl carbonate (II) with an alcohol R-OH, the MeOH formed is removed azeotropically with a 5-8C (cyclo)paraffin. The process is economical and does not necessitate the use of special conditions. (I) are intermediates for the prodn. of pharmaceuticals and plant protection agents.
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公开(公告)号：DE19704482A1
公开(公告)日：1998-08-13
申请号：DE19704482
申请日：1997-02-06
Applicant: BASF AG
Inventor： SIGWART CHRISTOPH DR , NARBESHUBER THOMAS DR , ELLER KARSTEN DR , BARL MANFRED DR , FISCHER ROLF DR , GEHRER EUGEN DR
Abstract: The invention relates to a method for producing halogen-free, reactive polyisobutene with a terminal double-bond content of over 50 mol % and an average molecular weight of 2,800 - 10,000 Dalton by cationic polymerization of isobutene or isobutene-containing hydrocarbon mixtures in a liquid phase, wherein polmerization is carried out at a temperature of -30 DEG C to +40 DEG C in the presence of a heterogeneous polymerization catalyst from one or several oxides of the elements of the 5th and 6th subgroup of the periodic table of elements or in the presence of a heterogeneous polymerization catalyst containing one or more oxidic compounds of one or more elements of the 5th and 6th subgroup of the periodic table of elements on an oxygen-containing zircon compound of various non-zeolitic oxidic supporting material, wherein said catalyst contains no technically active quantities of halogen.
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公开(公告)号：DE3522215A1
公开(公告)日：1987-01-02
申请号：DE3522215
申请日：1985-06-21
Applicant: BASF AG
Inventor： PILZ GEORG , THIEL GERHARD , BARL MANFRED DR , BUERGER GERT DR
IPC: C07C51/00 , C07C51/41 , C07C55/02 , C07C55/12 , C07C55/14 , C07C55/20 , C07C55/21 , C07C63/15 , C07C63/24 , C07C63/28 , C07C67/00 , C07C213/00 , C07C217/08 , C08G69/00 , C08G69/40 , C07C93/04 , C07C63/26 , C08G69/26
Abstract: Salts of oxaalkylenediamines of the formula I H2N-(R1-O)n-R2-NH2 I where R1 and R2 may be identical or different and are each alkylene of 2 to 4 carbon atoms and n is an integer from 1 to 3, and alkanedicarboxylic acids of 4 to 12 carbon atoms, terephthalic acid or isophthalic acid, which contain hydrazine, their preparation, and nylons prepared from them.
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公开(公告)号：DE3161713D1
公开(公告)日：1984-01-26
申请号：DE3161713
申请日：1981-10-19
Applicant: BASF AG
Inventor： DEGNER DIETER DR , BARL MANFRED DR
IPC: C25B3/29 , C07C43/305 , C07C50/04 , C25B3/23 , C25B3/02
Abstract: 1. A process for the preparation of a mixture of ketals of trimethyl-p-benzoquinone, of the formula see diagramm : EP0053261,P4,F2 where R**1 and R**2 are alkyl of 1 to 4 carbon atoms and R**3 is R**2 O, or the two radicals R**3 together are oxygen, wherein an alkyl trimethylphenyl ether of the formula see diagramm : EP0053261,P4,F3 is oxidized electrochemically in the presence of an alkanol of the formula R**2 OH.
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公开(公告)号：DE19734176A1
公开(公告)日：1999-02-11
申请号：DE19734176
申请日：1997-08-07
Applicant: BASF AG
Inventor： SIGWART CHRISTOPH DR , NARBESHUBER THOMAS DR , ARNOLD HEIKO DR , BARL MANFRED DR , FISCHER ROLF DR , GEHRER EUGEN DR
Abstract: A process is disclosed for preparing halogen-free, reactive polyisobutylene with a content of terminal double bonds of more than 50 % by moles and an average molecular weight Mn of 500 to 5000 daltons by cationic polymerisation of isobutylene or isobutylene-containing hydrocarbon mixtures in the liquid phase. Polymerisation is carried out at a temperature of between -40 and +10 DEG C in the presence of a molybdate or wolframate heteropolyacid.
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Patent Agency Ranking
公开(公告)号：DE3061631D1
公开(公告)日：1983-02-17
申请号：DE3061631
申请日：1980-08-21
Applicant: BASF AG
Inventor： BARL MANFRED DR , DEGNER DIETER DR , SIEGEL HARDO DR , HOFFMANN WERNER DR
IPC: C07C41/00 , C07C41/50 , C07C43/315 , C07C45/51 , C07C45/67 , C07C47/565 , C07C67/00 , C25B3/23 , C25B3/29 , C25B3/02
Abstract: 1. A process for the preparation of a 4-tert.-butoxybenzaldehyde-dialkylacetal of the formula see diagramm : EP0025883,P4,F2 where R is alkyl of 1 to 8 carbon atoms, wherein 4-tert.-butoxytoluene is oxidized electrochemically in the presence of an alcohol of the formula ROH, where R has the above meaning.
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公开(公告)号：DE3522216A1
公开(公告)日：1987-01-02
申请号：DE3522216
申请日：1985-06-21
Applicant: BASF AG
Inventor： PILZ GEORG , THIEL GERHARD , BARL MANFRED DR , BUERGER GERT DR
IPC: C07C51/41 , C07C51/00 , C07C55/02 , C07C55/14 , C07C55/18 , C07C55/20 , C07C55/21 , C07C67/00 , C07C213/00 , C07C217/08 , C07C93/04
Abstract: A process for the preparation of salts of dicarboxylic acids and diamines of the formula H2N-(R1-O)n-R2-NH2 I where R1 and R2 may be identical or different and are each alkylene of 2 to 4 carbon atoms and n is an integer from 1 to 3, which contain hydrazine in the form of hydrazine hydrate.
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公开(公告)号：DE3260172D1
公开(公告)日：1984-06-28
申请号：DE3260172
申请日：1982-02-18
Applicant: BASF AG
Inventor： BARL MANFRED DR , SIEGEL HARDO DR , DEGNER DIETER DR , MERCKER HANS JOCHEN DR
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公开(公告)号：DE3260133D1
公开(公告)日：1984-06-07
申请号：DE3260133
申请日：1982-05-03
Applicant: BASF AG
Inventor： BARL MANFRED DR , DEGNER DIETER DR , SIEGEL HARDO DR
IPC: C07C93/14
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公开(公告)号：DE2965677D1
公开(公告)日：1983-07-21
申请号：DE2965677
申请日：1979-10-26
Applicant: BASF AG
Inventor： DEGNER DIETER DR , BARL MANFRED DR , SIEGEL HARDO DR
IPC: C07C41/00 , C07C41/50 , C07C43/315 , C07C67/00 , C07C239/00 , C07C271/44 , C25B3/23 , C25B3/25 , C25B3/02 , C07C125/067 , C07C125/04
Abstract: 4-substituted benzaldehyde-dialkylacetals of the formula where R1 is one of the radicals CH2=CH-CH2-, R2 is alkyl and R3 and R4 are hydrogen or alkyl, and a process for the electrochemical preparation of these compounds.
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