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公开(公告)号：AT337801T
公开(公告)日：2006-09-15
申请号：AT04721850
申请日：2004-03-19
Applicant: BASF AG
Inventor： HERFERT NORBERT , AZAD MICHAEL M , CARRICO PETER W , WOODRUM GUY T , MITCHELL MICHAEL A , KIKAMA MA-IKAY
Abstract: A color-stable superabsorbent polymer having long-term color stability, and methods of manufacturing the polymer, are disclosed. The superabsorbent polymer is prepared using a sulfinic acid derivative, like 2-hydroxy-2-sulfinatoacetic acid, a salt thereof, or a mixture thereof, as the reducing agent in a polymerization initiator system for the preparation of a superabsorbent polymer from monomers. The resulting superabsorbent polymer resists color degradation during periods of extended storage, even at an elevated temperature and humidity.
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公开(公告)号：AU5279800A
公开(公告)日：2001-05-08
申请号：AU5279800
申请日：2000-05-19
Applicant: BASF AG
Inventor： SPINDLER RALPH , BEIHOFFER THOMAS W , AZAD MICHAEL M , NOE CONSTANCE M
IPC: C02F1/28 , B01J39/20 , B01J41/14 , C02F1/42 , C08F8/00 , C08F210/00 , C08F212/02 , C08F220/00 , C08F220/04 , C08F220/06 , C08F222/00 , C08F228/02 , C08G18/62 , C08G59/40 , C08F226/02
Abstract: Ion exchange resin granules containing a crosslinked polymerized alpha,beta-unsaturated acid, like acrylic acid, or a vinyl monomer containing an amino group, like polyvinylamine, and methods of manufacturing the resin, are disclosed.
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公开(公告)号：ES2258741T3
公开(公告)日：2006-09-01
申请号：ES03792228
申请日：2003-07-24
Applicant: BASF AG
Inventor： HERFERT NORBERT , MITCHELL MICHAEL A , AZAD MICHAEL M , WOODRUM GUY T , CHIANG WILLIAM G-J
IPC: A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/60 , B01J20/12 , B01J20/26 , C08J3/12 , C08J3/24 , C08K3/34 , A61L15/18
Abstract: Partículas superabsorbentes reticuladas en sus superficies, que comprenden: (i) 50% a 88% en peso de un polímero superabsorbente, comprendiendo dicho polímero superabsorbente de 0, 001% a 5% en peso de un agente de reticulación de dichas superficies; (ii) 12% a 35% en peso de una arcilla, estando presente dicha arcilla en proximidad a las superficies de las partículas superabsorbentes; y (iii) 0% a 25% en peso de un formador inorgánico de la red, siendo preparadas dichas partículas mediante un método que comprende las etapas de: (a) polimerizar uno o más monómeros capaces de proporcionar un polímero superabsorbente en presencia de un monómero de reticulación interna para formar un hidrogel de polímero superabsorbente; (b) desmenuzar el hidrogel de polímero superabsorbente para formar partículas de hidrogel de polímero superabsorbente; (c) secar las partículas de hidrogel de polímero superabsorbente de la etapa (b) para proporcionar partículas superabsorbentes secas; (d) aplicar a la superficie de las partículas superabsorbentes de la etapa (c) una mezcla que comprende un agente de reticulación de las superficies de tales partículas y una arcilla, para proporcionar partículas de polímero superabsorbente tratadas en sus superficies; y (e) calentar entonces las partículas de polímero superabsorbentes tratadas en sus superficies durante un tiempo suficiente y a una temperatura suficiente para reticular las superficies de las partículas de polímero superabsorbente tratadas en sus superficies y situar la arcilla en proximidad a las superficies de las partículas superabsorbentes reticuladas en tales superficies.
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公开(公告)号：DE60304216D1
公开(公告)日：2006-05-11
申请号：DE60304216
申请日：2003-07-24
Applicant: BASF AG
Inventor： HERFERT NORBERT , MITCHELL MICHAEL A , AZAD MICHAEL M , WOODRUM GUY T , CHIANG WILLIAM G-J
IPC: A61F13/53 , A61L15/18 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/60 , B01J20/12 , B01J20/26 , C08J3/12 , C08J3/24 , C08K3/34
Abstract: Surface-crosslinked superabsorbent polymer (SAP) particles having a clay in the vicinity of the surfaces of the SAP particles a clay are disclosed. The clay is added to SAP particles during surface crosslinking to substantially reduce the generation, and recycling, of SAP fines, and to provide SAP particles having an improved acquisition rate of fluids and an improved permeability of a fluid through the swollen SAP particles. Diaper cores and absorbent articles containing the surface crosslinked SAP particles also are disclosed.
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公开(公告)号：AU2003250155A1
公开(公告)日：2004-03-11
申请号：AU2003250155
申请日：2003-07-24
Applicant: BASF AG
Inventor： HERFERT NORBERT , MITCHELL MICHAEL A , AZAD MICHAEL M , WOODRUM GUY T , CHIANG WILLIAM G-J
IPC: A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/60 , B01J20/12 , B01J20/26 , C08J3/12 , C08J3/24 , C08K3/34 , A61L15/18
Abstract: Surface-crosslinked superabsorbent polymer (SAP) particles having a clay in the vicinity of the surfaces of the SAP particles a clay are disclosed. The clay is added to SAP particles during surface crosslinking to substantially reduce the generation, and recycling, of SAP fines, and to provide SAP particles having an improved acquisition rate of fluids and an improved permeability of a fluid through the swollen SAP particles. Diaper cores and absorbent articles containing the surface crosslinked SAP particles also are disclosed.
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Patent Agency Ranking
公开(公告)号：ZA200502353B
公开(公告)日：2006-05-31
申请号：ZA200502353
申请日：2005-03-22
Applicant: BASF AG
Inventor： HERFERT NORBERT , AZAD MICHAEL M , MITCHELL MICHAEL A , WOODRUM GUY T , CHIANG WILLIAM G-J , BROWN PATRICIA D , ROBINSON JAMES C
IPC: A61F13/53 , A61F13/15 , A61F13/49 , A61L20060101 , A61L15/60 , B01J20060101 , B01J20/12 , B01J20/26 , C08F2/44 , C08J3/00 , C08J3/12 , C08J3/20 , C08J3/21 , C08J3/215 , C08K3/34 , C08L1/00 , C08L101/14
Abstract: Superabsorbent polymer (SAP) particels containing a clay are disclosed. The clay is added to an SAP hydrogel prior to SAP neutralization to provide particles having improved fluid acquisition rates and an improved permeability of a fluid through the swollen SAP-clay particles. Diaper cores and absorbent articles containing the SAP-clay particles also are disclosed.
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公开(公告)号：AU2002352016A1
公开(公告)日：2003-06-10
申请号：AU2002352016
申请日：2002-11-15
Applicant: BASF AG
Inventor： ROBINSON JIM , AZAD MICHAEL M , HERFERT NORBERT , MITCHELL MICHAEL
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公开(公告)号：BRPI0408243B1
公开(公告)日：2015-03-17
申请号：BRPI0408243
申请日：2004-03-19
Applicant: BASF AG
Inventor： HERFERT NORBERT , AZAD MICHAEL M , CARRICO PETER W , WOODRUM GUY T , MITCHELL MICHAEL A , KIKAMA MA-IKAY
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公开(公告)号：DE60304216T2
公开(公告)日：2006-08-17
申请号：DE60304216
申请日：2003-07-24
Applicant: BASF AG
Inventor： HERFERT NORBERT , MITCHELL MICHAEL A , AZAD MICHAEL M , WOODRUM GUY T , CHIANG WILLIAM G-J
IPC: A61F13/53 , A61L15/18 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/60 , B01J20/12 , B01J20/26 , C08J3/12 , C08J3/24 , C08K3/34
Abstract: Surface-crosslinked superabsorbent polymer (SAP) particles having a clay in the vicinity of the surfaces of the SAP particles a clay are disclosed. The clay is added to SAP particles during surface crosslinking to substantially reduce the generation, and recycling, of SAP fines, and to provide SAP particles having an improved acquisition rate of fluids and an improved permeability of a fluid through the swollen SAP particles. Diaper cores and absorbent articles containing the surface crosslinked SAP particles also are disclosed.
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公开(公告)号：BRPI0408243A
公开(公告)日：2006-03-01
申请号：BRPI0408243
申请日：2004-03-19
Applicant: BASF AG
Inventor： HERFERT NORBERT , AZAD MICHAEL M , CARRICO PETER W , WOODRUM GUY T , MITCHELL MICHAEL A , KIKAMA MA-IKAY
Abstract: A color-stable superabsorbent polymer having long-term color stability, and methods of manufacturing the polymer, are disclosed. The superabsorbent polymer is prepared using a sulfinic acid derivative, like 2-hydroxy-2-sulfinatoacetic acid, a salt thereof, or a mixture thereof, as the reducing agent in a polymerization initiator system for the preparation of a superabsorbent polymer from monomers. The resulting superabsorbent polymer resists color degradation during periods of extended storage, even at an elevated temperature and humidity.
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