-
公开(公告)号:DE10225943A1
公开(公告)日:2004-01-08
申请号:DE10225943
申请日:2002-06-11
Applicant: BASF AG
Inventor: JAWOREK THOMAS , DANIEL THOMAS , WOLF LOTHAR , KOENIGER RAINER , SCHWALM REINHOLD , HARTMANN GABRIELE , WICKEL STEFAN
-
公开(公告)号:CZ20031084A3
公开(公告)日:2003-09-17
申请号:CZ20031084
申请日:2001-10-17
Applicant: BASF AG
Inventor: HEIDE WILFRIED , WICKEL STEFAN , DANIEL THOMAS , STUVEN UWE
IPC: C08F2/01 , B01J19/20 , C08F2/04 , C08F2/10 , C08F8/00 , C08F220/04 , C08F220/06 , C08F220/56 , C08F290/06
Abstract: The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a first cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable componenents and can be advantageously produced by a continuous method.
-
公开(公告)号:DE10163543A1
公开(公告)日:2003-07-31
申请号:DE10163543
申请日:2001-12-21
Applicant: BASF AG
Inventor: NESTLER GERHARD , SCHROEDER JUERGEN , WICKEL STEFAN
Abstract: The present invention relates to novel tocopherol-containing superabsorbents, to a process for preparing them using tocopherol-containing acid-functional monomers, especially acrylic acid, and to their use for absorbing aqueous fluids.
-
公开(公告)号:AU1055302A
公开(公告)日:2002-04-29
申请号:AU1055302
申请日:2001-10-17
Applicant: BASF AG
Inventor: HEIDE WILFRIED , WICKEL STEFAN , DANIEL THOMAS , STUVEN UWE
IPC: C08F2/01 , B01J19/20 , C08F2/04 , C08F2/10 , C08F8/00 , C08F220/04 , C08F220/06 , C08F220/56 , C08F290/06
Abstract: The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a first cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable componenents and can be advantageously produced by a continuous method.
-
公开(公告)号:AU7271491A
公开(公告)日:1991-09-12
申请号:AU7271491
申请日:1991-03-07
Applicant: BASF AG
Inventor: NIESSNER MANFRED , WICKEL STEFAN , SCHNEIDER WALTER , BECK JUERGEN , HARTMANN HEINRICH , MEYER THOMAS
-
公开(公告)号:AU6022990A
公开(公告)日:1991-02-14
申请号:AU6022990
申请日:1990-08-07
Applicant: BASF AG
Inventor: NIESSNER MANFRED , BECK JUERGEN , HARTMANN HEINRICH , KEMNA ANDREAS H , WICKEL STEFAN
Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.
-
公开(公告)号:ZA200405800B
公开(公告)日:2005-07-21
申请号:ZA200405800
申请日:2004-07-21
Applicant: BASF AG
Inventor: WICKEL STEFAN , SCHROEDER JUERGEN , NESTLER GERHARD
Abstract: The present invention relates to novel tocopherol-containing superabsorbents, to a process for preparing them using tocopherol-containing acid-functional monomers, especially acrylic acid, and to their use for absorbing aqueous fluids.
-
公开(公告)号:ES2234902T3
公开(公告)日:2005-07-01
申请号:ES01978432
申请日:2001-10-17
Applicant: BASF AG
Inventor: HEIDE WILFRIED , WICKEL STEFAN , DANIEL THOMAS , STUVEN UWE
IPC: C08F2/01 , B01J19/20 , C08F2/04 , C08F2/10 , C08F8/00 , C08F220/04 , C08F220/06 , C08F220/56 , C08F290/06
Abstract: Polímero reticulado hinchable en agua que contiene unidades mono-polimerizadas de: a) monómeros solubles en agua monoetilénicamente insaturados y b) 0, 001 a 5% en moles referido a los monómeros a) de una combinación de agente reticulador b1) de un primer agente reticulador con al menos dos unidades de éster (met)acrílico en la molécula y b2) de un segundo agente reticulador con al menos dos unidades (met)aliloxi en la molécula, en el que la relación molar de b1) a b2) se encuentra en el intervalo de 0, 7:1 a 10:1.
-
公开(公告)号:BR0311500A
公开(公告)日:2005-03-08
申请号:BR0311500
申请日:2003-06-06
Applicant: BASF AG
Inventor: JAWOREK THOMAS , DANIEL THOMAS , WOLF LOTHAR , KOENIGER RAINER , SCHWALM REINHOLD , HARTMANN GABRIELE , WICKEL STEFAN
IPC: C08G63/78 , A61L15/60 , C07C67/08 , C08G65/332 , C07C69/54
-
公开(公告)号:BR0215031A
公开(公告)日:2004-11-03
申请号:BR0215031
申请日:2002-12-18
Applicant: BASF AG
Inventor: NESTLER GERHARD , DER J RGEN SCHR , WICKEL STEFAN
Abstract: The present invention relates to novel tocopherol-containing superabsorbents, to a process for preparing them using tocopherol-containing acid-functional monomers, especially acrylic acid, and to their use for absorbing aqueous fluids.
-
-
-
-
-
-
-
-
-