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公开(公告)号：AU5752298A
公开(公告)日：1998-07-03
申请号：AU5752298
申请日：1997-11-28
Applicant: BASF AG
Inventor： SUTORIS HEINZ FRIEDRICH , UHR HERMANN , MITULLA KONRAD , SCHRODER JURGEN , MERGER ROLAND , KESSEL KNUT
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公开(公告)号：CA2256379C
公开(公告)日：2008-03-18
申请号：CA2256379
申请日：1997-11-28
Applicant: BASF AG
Inventor： UHR HERMANN , MERGER ROLAND , MITULLA KONRAD , KESSEL KNUT , SCHRODER JURGEN , SUTORIS HEINZ FRIEDRICH
IPC: C07C7/20 , C07F15/02 , C07B63/04 , C07C15/46 , C07C51/50 , C07C57/075 , C07C67/62 , C07C69/15 , C07C69/54 , C07C231/22 , C07C233/03 , C07C253/32 , C07C255/08 , C07D201/18 , C07D207/267 , C07D223/10 , C08F2/40 , C08F4/00
Abstract: The invention concerns substance mixtures containing: (A) compounds containi ng vinyl groups; (B) an active amount of a mixture which inhibits premature polymerization of the compounds containing vinyl groups and contains: (i) at least one N-oxyl compound of a secondary amine which does not carry any hydrogen atoms on the .alpha.-carbo n atoms; and (ii) at least one iron compound; (C) optionally nitro compounds; and (D) optionally co-stabilizers. The invention further concerns a process for inhibiting the premature polymerization of compounds (A) containing vinyl groups, and the use of mixture (B), optionall y mixed with nitro compounds (C) and/or co-stabilizers (D), for inhibiting the premature polymerization of radically polymerizable compounds and for stabilizing organic materials against the harmful effect of radicals.
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公开(公告)号：FR2850103B1
公开(公告)日：2007-04-13
申请号：FR0450083
申请日：2004-01-14
Applicant: BASF AG
Inventor： SCHRODER JURGEN
Abstract: Method for preparing (meth)acrylate esters (I) by esterification of (meth)acrylic acid (II) or by transesterification of other (I) with an alcohol (III). Method for preparing (meth)acrylate esters (I) by esterification of (meth)acrylic acid (II) or transesterification of other (I) with an alcohol (III) in which: (a) (I) or (II) is supplied at less than 250 g/hour/l of reactor volume; and/or (b) at least 0.2 mmole polymerization inhibitor (IV) is added per kg (III), for each meq/kg of peroxide number (measured by the Sully method) of (III); and/or (c) (III) is heat treated, in absence of water, before reaction.
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公开(公告)号：FR2850103A1
公开(公告)日：2004-07-23
申请号：FR0450083
申请日：2004-01-14
Applicant: BASF AG
Inventor： SCHRODER JURGEN
Abstract: Method for preparing (meth)acrylate esters (I) by esterification of (meth)acrylic acid (II) or by transesterification of other (I) with an alcohol (III). Method for preparing (meth)acrylate esters (I) by esterification of (meth)acrylic acid (II) or transesterification of other (I) with an alcohol (III) in which: (a) (I) or (II) is supplied at less than 250 g/hour/l of reactor volume; and/or (b) at least 0.2 mmole polymerization inhibitor (IV) is added per kg (III), for each meq/kg of peroxide number (measured by the Sully method) of (III); and/or (c) (III) is heat treated, in absence of water, before reaction.
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公开(公告)号：ES2206197T3
公开(公告)日：2004-05-16
申请号：ES00907643
申请日：2000-02-28
Applicant: BASF AG
Inventor： SCHRODER JURGEN , NESTLER GERHARD , MULLER-ENGEL KLAUS JOACHIM
IPC: B01D3/14 , B01D3/34 , C07B61/00 , C07C51/21 , C07C51/43 , C07C51/44 , C07C51/487 , C07C51/50 , C07C57/05 , C07C57/055 , C07C57/07
Abstract: In a process for the preparation of acrylic acid, a product gas mixture obtained by catalytic gas-phase oxidation of a C3-precursor of acrylic acid and containing acrylic acid is directly cooled with a quench liquid and then subjected to fractional condensation in a separation column provided with baffles, said product gas mixture ascending into itself and a crude acrylic acid being removed via a side take-off, and the acrylic acid oligomers formed are cleaved and recycled.
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Patent Agency Ranking
公开(公告)号：AU2003276052A1
公开(公告)日：2004-05-04
申请号：AU2003276052
申请日：2003-10-06
Applicant: BASF AG
Inventor： HAMMON ULRICH , BAUMANN DIETER , HEILEK JORG , SCHRODER JURGEN , MULLER-ENGEL KLAUS JOACHIM , THIEL JOACHIM
Abstract: In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C 3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separating column provided with internals, rising into itself with sidestream takeoff of crude acrylic acid, and the acrylic acid oligomers which form are dissociated and the resulting dissociation gas is subjected to a countercurrent rectification before it is recycled.
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公开(公告)号：AU2003238476A1
公开(公告)日：2003-12-22
申请号：AU2003238476
申请日：2003-06-06
Applicant: BASF AG
Inventor： POPP ANDREAS , DANIEL THOMAS , SCHRODER JURGEN , JAWOREK THOMAS , FUNK RUDIGER , SCHWALM REINHOLD , WEISMANTEL MATTHIAS , RIEGEL ULRICH
IPC: C08G65/332 , A61L15/60 , C07B61/00 , C07C67/08 , C07C69/54 , C08F290/06 , C08G65/26 , C08G65/28
Abstract: The present invention relates to novel (meth)acrylic esters of polyalkoxylated trimethylolpropane of the formula where AO is for each AO independently at each instance EO, PO or BO where EO is O-CH2-CH2- PO is independently at each instance O-CH2-CH(CH3)- or O-CH(CH3)-CH2- BO is independently at each instance O-CH2-CH(CH2-CH3)- or O-CH(CH2-CH3)-CH2- p1+p2+p3 is 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74 or 75, R1, R2 and R3 are independently H or CH3, a simplified process for preparing these esters and the use of reaction mixtures thus obtainable.
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公开(公告)号：AU2002356570A1
公开(公告)日：2003-05-26
申请号：AU2002356570
申请日：2002-11-08
Applicant: MARTIN FRIEDRICH GEORG , BASF AG
Inventor： MARTIN FRIEDRICH-GEORG , DERNBACH MATTHIAS , SIRCH TILMAN , SCHRODER JURGEN , WARTINI ALEXANDER
Abstract: (Meth)acrylates of polyhydric alcohols are prepared by reacting (meth)acrylic acid and the corresponding polyhydric alcohol in the presence of at least one acidic catalyst and, if required, at least one polymerization inhibitor and in the presence or absence of a solvent, by a process in which the polyhydric alcohol used contains less than 500 ppm of bound formaldehyde.
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公开(公告)号：ID30511A
公开(公告)日：2001-12-13
申请号：ID20012374
申请日：2000-04-27
Applicant: BASF AG
Inventor： AICHINGER HEINRICH , NESTLER GERHARD , SCHRODER JURGEN
Abstract: Free radical polymerizations immediately terminated by a process comprising the addition of an inhibitor solution which contains phenothiazine and at least 50% (w/w) N-alkylpyrrolidone to a system undergoing free radical polymerization, wherein the inhibitor solution also contains p-methoxyphenol (MEHQ).
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公开(公告)号：AU698827B2
公开(公告)日：1998-11-05
申请号：AU4941896
申请日：1996-02-27
Applicant: BASF AG
Inventor： MERKLE HANS RUPERT , FRETSCHNER ERICH , SCHRODER JURGEN
IPC: C07D231/12 , C07D521/00
Abstract: PCT No. PCT/EP96/00790 Sec. 371 Date Aug. 20, 1997 Sec. 102(e) Date Aug. 20, 1997 PCT Filed Feb. 27, 1996 PCT Pub. No. WO96/27589 PCT Pub. Date Sep. 12, 1996A process for the preparation of an N-alkyl- or N-phenylalkyl-substituted pyrazole I by reacting the corresponding N-unsubstituted pyrazole II with an alcohol III of the formula R1-OH where R1 is the same alkyl or phenylalkyl group to be added to the unsubstituted nitrogen group -NH- of the pyrazole reactant. Both of the reactants, i.e. the pyrazole II and alcohol III compounds, are catalytically reacted in the liquid phase in a molar ratio of from 0.001:1 to 1:1, at temperatures of 50 DEG -400 DEG C. and under a subatmosheric pressure of from 0.8 bar up to a superatmospheric pressure of 250 bar. The catalyst required for this liquid phase reaction is selected as being at least one or more non-heterogeneous acid catalysts, their alkyl esters or their acid anhydrides.
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