公开(公告)号：NO20051652A

公开(公告)日：2005-05-25

申请号：NO20051652

申请日：2005-04-04

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  PASTRE JORG ,  STUEER WOLFRAM ,  EXNER KAI MICHAEL ,  GEISSLER ELKE

IPC: C07C51/09 ,  C07C51/54 ,  C07C51/56 ,  C07C67/10

CPC classification number: C07C51/54 ,  C07C51/09 ,  C07C51/56 ,  Y02P20/582 ,  C07C53/02 ,  C07C57/04 ,  C07C53/124 ,  C07C53/122 ,  C07C63/313 ,  C07C53/12

公开(公告)号：DE102005055815A1

公开(公告)日：2007-05-24

申请号：DE102005055815

申请日：2005-11-21

Applicant: BASF AG

Inventor： EXNER KAI MICHAEL ,  MASSONNE KLEMENS ,  STEGMANN VEIT ,  MAASE MATTHIAS

IPC: C07D233/54

Abstract: The present invention describes a process for preparing ionic liquids (I) by reacting ionic liquids (II) whose anion is a halide with an acid (III), with the resulting hydrogen halide being scavenged by means of an amine and the resulting ammonium halide being able to be separated off.

公开(公告)号：DE10359433A1

公开(公告)日：2005-07-21

申请号：DE10359433

申请日：2003-12-17

Applicant: BASF AG

Inventor： EXNER KAI MICHAEL ,  MASSONNE KLEMENS ,  LAAS HARALD ,  GLAS DETLEV ,  SZARVAS LASZLO

IPC: C07B61/00 ,  C07C1/34 ,  C07C67/293 ,  C07C403/12 ,  C07C403/20

公开(公告)号：DE10334584A1

公开(公告)日：2005-02-24

申请号：DE10334584

申请日：2003-07-28

Applicant: BASF AG

Inventor： DANIEL THOMAS ,  RIEGEL ULRICH ,  ELLIOTT MARK ,  OEHSEN UBBO VON ,  EXNER KAI MICHAEL ,  MASSONNE KLEMENS

IPC: C08F8/30 ,  C08J3/24 ,  C08J3/075 ,  A61L15/22 ,  B65D81/26

Abstract: A process for the post crosslinking of water absorbing polymers comprises treatment with a bicyclic amideacetal crosslinking agent with simultaneous or subsequent heating. A process for the post crosslinking of water absorbing polymers comprises treatment with a bicyclic amideacetal crosslinking agent (I) of formula (I) with simultaneous or subsequent heating. [Image] R 1>-R 9>H, 1-12 C alkyl, 2-12 C alkenyl or 6-12 C aryl, all optionally halogenated An independent claim is included for the resulting water absorbing polymer.

公开(公告)号：BR0212952A

公开(公告)日：2004-10-13

申请号：BR0212952

申请日：2002-09-27

Applicant: BASF AG

Inventor： DANIEL THOMAS ,  EXNER KAI MICHAEL ,  MASSONNE KLEMENS ,  RIEGEL ULRICH ,  WEISMANTEL MATTHIAS

IPC: B65D65/02 ,  A61L15/00 ,  A61L15/60 ,  C07D265/32 ,  C08F8/30 ,  C08K5/357 ,  C08L101/14

Abstract: The invention relates to a method for gel post-crosslinking or surface post-crosslinking water-absorbing hydogels with morpholine-2,3-diones, to the post-crosslinked hydrogels and to the use thereof.

公开(公告)号：AU2003293754A8

公开(公告)日：2004-06-30

申请号：AU2003293754

申请日：2003-12-03

Applicant: BASF AG

Inventor： ELLIOT MARK ,  EXNER KAI MICHAEL ,  BENNETT ANDREA KAREN ,  CIPRIAN JURGEN

IPC: A61L15/60 ,  C07C51/47 ,  C08F20/06 ,  C07C57/04

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.

公开(公告)号：AU2003278114A1

公开(公告)日：2004-05-13

申请号：AU2003278114

申请日：2003-10-21

Applicant: BASF AG

Inventor： PASTRE JORG ,  EXNER KAI MICHAEL ,  STUER WOLFRAM ,  GEISSLER ELKE ,  MACHHAMMER OTTO

IPC: C07C51/09 ,  C07C51/54 ,  C07C51/56 ,  C07C67/10 ,  C07C53/122 ,  C07C53/124 ,  C07C63/313 ,  C07C53/02 ,  C07C69/14 ,  C07C53/12

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).

公开(公告)号：NO331010B1

公开(公告)日：2011-09-05

申请号：NO20051652

申请日：2005-04-04

Applicant: BASF AG

Inventor： MACHHAMMER OTTO ,  PASTRE JORG ,  STUEER WOLFRAM ,  EXNER KAI MICHAEL ,  GEISSLER ELKE

IPC: C07C51/54 ,  C07C51/09 ,  C07C51/56

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).

公开(公告)号：BR0316796A

公开(公告)日：2005-11-01

申请号：BR0316796

申请日：2003-12-03

Applicant: BASF AG

Inventor： BENNETT ANDREA KAREN ,  CIPRIAN J RGEN ,  ELLIOTT MARK ,  EXNER KAI MICHAEL

IPC: A61L15/60 ,  C07C51/47 ,  C08F20/06 ,  C07C57/04

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.

公开(公告)号：ES2238589T3

公开(公告)日：2005-09-01

申请号：ES02754895

申请日：2002-07-17

Applicant: BASF AG

Inventor： HIBST HARTMUT ,  NOE RALF ,  EXNER KAI MICHAEL ,  DUDA MARK

IPC: C07B61/00 ,  C07D307/60

Abstract: Procedimiento para la producción de anhídrido del ácido maleico mediante la oxidación en fase gaseosa, catalítica heterogénea, de una corriente de hidrocarburos que contiene n-buteno con gases que contienen oxígeno en un reactor tubular con dos zonas de reacción consecutivas, de modo que la primera zona de reacción, del lado de los eductos, contiene al menos un catalizador, que es adecuado para la oxideshidrogenación de los n-butenos para dar 1, 3-butadieno y la segunda zona de reacción, del lado de los productos, contiene al menos un catalizador que es adecuado para la oxidación de 1, 3- butadieno para dar anhídrido del ácido maleico, caracterizado porque se utiliza un reactor tubular, que presenta al menos un circuito de fluido térmico en la región de la primera zona de reacción, del lado de los eductos, y al menos otro circuito de fluido térmico en la región de la segunda zona de reacción, del lado de los productos.