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公开(公告)号：WO2004052819A2
公开(公告)日：2004-06-24
申请号：PCT/EP0313621
申请日：2003-12-03
Applicant: BASF AG , BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Inventor： BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: The invention relates to reduction of a MEHQ (methoxyhydroquinone) content in acrylic acid or in the salts thereof by absorption on activated charcoal. In particular, MEHQ is eliminated from a totally or partially neutralised acrylic acid.
Abstract translation: 本发明涉及的MEHQ（甲氧基氢醌）丙烯酸或其盐通过连续吸附在活性炭上的内容的减少。 特别是，MEHQ从部分或完全中和的丙烯酸除去。
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2.发明申请METHOD FOR THE SECONDARY CROSSLINKING OF WATER-ABSORBING POLYMERS WITH CYCLIC CARBAMATES AND/OR CYCLIC UREAS 审中-公开具有循环氨基甲酸酯和/或循环水脲聚合物的方法后交联
公开(公告)号：WO2006015729A3
公开(公告)日：2006-06-08
申请号：PCT/EP2005008198
申请日：2005-07-28
Applicant: BASF AG , EXNER KAI MICHAEL , DANIEL THOMAS , ELLIOTT MARK , RIEGEL ULRICH
Inventor： EXNER KAI MICHAEL , DANIEL THOMAS , ELLIOTT MARK , RIEGEL ULRICH
IPC: A61L15/60
CPC classification number: A61L15/60
Abstract: The invention relates to a method for the secondary crosslinking of water-absorbent polymers by treating the polymer with at least one secondary crosslinking agent and post-crosslinking and drying the same during or after the treatment by increasing the temperature. Said at least one secondary crosslinking agent represents a cyclic carbamate or a cyclic urea obtained by reacting an amino alcohol or a diamine with a cyclic carbonate.
Abstract translation: 本发明涉及一种用于通过与至少一种后交联剂处理的聚合物后交联的吸水性聚合物的方法和过程中或通过提高温度处理后后交联和干燥，其特征在于，所述至少一个后交联剂为环状氨基甲酸酯或环脲，由氨基醇的反应而获得 或二胺与环状碳酸酯。
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3.发明申请
公开(公告)号：WO2005070866A2
公开(公告)日：2005-08-04
申请号：PCT/EP2005000422
申请日：2005-01-18
Applicant: BASF AG , URBAN DIETER , SCHWALM REINHOLD , KIRSCH STEFAN , EXNER KAI MICHAEL , CENTNER ALEXANDER
Inventor： URBAN DIETER , SCHWALM REINHOLD , KIRSCH STEFAN , EXNER KAI MICHAEL , CENTNER ALEXANDER
IPC: C07C67/08 , C07C67/26 , C07C69/54 , C07C69/732 , C07C233/20 , C08L33/00
CPC classification number: C07C233/20 , C07C69/54 , C07C69/732
Abstract: The invention relates to a dispersion or solution of a polymer in water, organic solvents or mixtures thereof. The invention is characterised in that the polymer contains at least 0,001 mols of 3,4 dihydroxyphenyl groups (calculated at 109 g/mol) for 100 g polymer.
Abstract translation: 聚合物在水，有机溶剂或其混合物中的分散体或溶液，其特征在于聚合物含有每100g聚合物至少0.001摩尔的3,4-二羟基苯基（以109g / mol计算）。
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公开(公告)号：WO2004052819A8
公开(公告)日：2005-07-07
申请号：PCT/EP0313621
申请日：2003-12-03
Applicant: BASF AG , BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Inventor： BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: The invention relates to reduction of a MEHQ (methoxyhydroquinone) content in acrylic acid or in the salts thereof by absorption on activated charcoal. In particular, MEHQ is eliminated from a totally or partially neutralised acrylic acid.
Abstract translation: 本发明涉及的MEHQ（甲氧基氢醌）丙烯酸或其盐通过连续吸附在活性炭上的内容的减少。 特别是，MEHQ从部分或完全中和的丙烯酸除去。
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公开(公告)号：CA2546480A1
公开(公告)日：2005-06-30
申请号：CA2546480
申请日：2004-12-14
Applicant: BASF AG
Inventor： SZARVAS LASZLO , GLAS DETLEV , EXNER KAI MICHAEL , LAAS HARALD , MASSONNE KLEMENS
IPC: C07F9/54
Abstract: The invention relates to a method for producing quaternary phosphonium salts by reacting a tertiary phospine with an optionally substituted, saturated or mono- or polyunsaturated electrophile comprising between 3 and 25 carbon atoms, in ternary solvent mixtures.
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Patent Agency Ranking
公开(公告)号：AU2003293754A1
公开(公告)日：2004-06-30
申请号：AU2003293754
申请日：2003-12-03
Applicant: BASF AG
Inventor： BENNETT ANDREA KAREN , CIPRIAN JURGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: A process for the reduction of the concentration of methoxyhydroquinone (MEHQ) in acrylic acid that is neutralized to 75-100% comprises continuous adsorption on activated carbon. An Independent claim is included for a process for the production of superabsorbers (I) by reduction of the MEHQ content by the novel process followed by polymerization, optionally with non-neutralized acrylic acid with optionally surface cross-linking.
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公开(公告)号：DE10249928A1
公开(公告)日：2004-05-06
申请号：DE10249928
申请日：2002-10-26
Applicant: BASF AG
Inventor： PASTRE JOERG , EXNER KAI MICHAEL , STUEER WOLFRAM , GEISLER ELKE , MACHHAMMER OTTO
Abstract: Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).
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公开(公告)号：DE102005048552A1
公开(公告)日：2007-04-12
申请号：DE102005048552
申请日：2005-10-11
Applicant: BASF AG
Inventor： CAUWENBERGE GUNTHER VAN , MELDER JOHANN-PETER , WENZ KIRSTEN , MASSONNE KLEMES , OEHLENSCHLAEGER STEFFEN , EXNER KAI MICHAEL
IPC: C07C209/60 , C07C209/82 , C07C211/10 , C07D295/023
Abstract: Processes are described comprising: (i) providing a reactant comprising 1,2-dichloroethane; and (ii) reacting the reactant with ammonia to form a reaction product comprising one or more ethylene amines and hydrogen chloride, wherein the reaction is carried out in the presence of an organic, nitrogen- or phosphorus-containing compound which reacts with the hydrogen chloride to form an ionic liquid.
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公开(公告)号：DE102004038015A1
公开(公告)日：2006-03-16
申请号：DE102004038015
申请日：2004-08-04
Applicant: BASF AG
Inventor： EXNER KAI MICHAEL , DANIEL THOMAS , ELLIOTT MARK , RIEGEL ULRICH
Abstract: Disclosed is a process for postcrosslinking a water absorbing polymer by the polymer being treated with at least one postcrosslinker and postcrosslinked and dried during or after the treatment by raising the temperature, the at least one postcrosslinker being a cyclic carbamate or a cyclic urea, wherein the cyclic carbamate or the cyclic urea was obtained by reacting respectively an aminoalcohol or a diamine with a cyclic carbonate.
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公开(公告)号：DE10359434A1
公开(公告)日：2005-07-21
申请号：DE10359434
申请日：2003-12-17
Applicant: BASF AG
Inventor： SZARVAS LASZLO , MASSONNE KLEMENS , LAAS HARALD , EXNER KAI MICHAEL , GLAS DETLEV
IPC: C07F9/54 , C07C403/00 , C07C1/34 , C07B61/00
Abstract: The present invention relates to a process for preparing quaternary phosphonium salts by reacting a ternary phosphine with an optionally substituted, saturated or monounsaturated or polyunsaturated electrophile having from 3 to 25 carbon atoms in ternary solvent mixtures.
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