公开(公告)号：CA2345727A1

公开(公告)日：2000-04-20

申请号：CA2345727

申请日：1999-09-28

Applicant: BASF AG

Inventor： STUVEN UWE ,  ENGELHARDT FRITZ ,  SCHLIWA RUDOLF ,  DENTLER JOACHIM ,  HERFERT NORBERT

IPC: A61F13/15 ,  A61F13/53 ,  A61L15/00 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F2/01 ,  C08F8/44 ,  C08F220/06 ,  C08F251/00 ,  C08F261/04 ,  C08F283/00 ,  C08F283/02 ,  C08F283/06 ,  C08F291/00 ,  C08J3/12 ,  C09K3/00

Abstract: The invention relates to a method for producing water-swellable hydrophilic polymers by neutralising the acid hydrogel with a degree of neutralisation o f 0 40 mol. % to a final degree of neutralisation of 60 85 mol. % by mixing wi th a neutralising agent in an opener using a system consisting of a screw, a rotating blade, a restricted flow area and a breaker plate, the capacity of the opener being 1000 to 6000 Wh/m3, the hydrogel being guided through an ar ea with an energy dissipation density of 400 to 800 W/l mixing volume, the average residence time of the hydrogel in the opener being 5 to 30 seconds, and the free perforated surface of the breaker plate being 20 to 40 %.

公开(公告)号：DE50208214D1

公开(公告)日：2006-11-02

申请号：DE50208214

申请日：2002-06-21

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA ,  STUEVEN UWE ,  BECK MARTIN

IPC: C08F20/06 ,  C08F220/04 ,  A61L15/00 ,  D04H1/40 ,  D06M15/263

Abstract: The present invention relates to novel hydrophilic swellable addition polymers comprising improved odor control, a process for their preparation and their use for absorbing aqueous fluids and a process for screening superabsorbents.

公开(公告)号：ES2256794T3

公开(公告)日：2006-07-16

申请号：ES03792227

申请日：2003-07-24

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  AZAD MICHAEL M ,  MITCHELL MICHAEL A ,  WOODRUM GUY T ,  CHIANG WILLIAM G-J ,  BROWN PATRICIA D

IPC: A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/12 ,  B01J20/26 ,  C08F2/44 ,  C08J3/00 ,  C08J3/12 ,  C08J3/20 ,  C08J3/21 ,  C08J3/215 ,  C08K3/34 ,  C08L1/00 ,  C08L101/14 ,  A61L15/18

Abstract: Partículas superabsorbentes que comprenden: (i) alrededor de 50 a 95% en peso de un polímero superabsorbente; y (ii) alrededor de 5 a 50% en peso de una arcilla, cuyas partículas son preparadas por un método que comprende las etapas de: (a) polimerizar un monómero sin neutralizar capaz de proporcionar un polímero superabsorbente en presencia de un monómero de reticulación interna, para formar un hidrogel de polímero superabsorbente; (b) moler el hidrogel de polímero superabsorbente para formar partículas de hidrogel de polímero superabsorbente; (c) mezclar una arcilla con las partículas de hidrogel de polímero superabsorbente para formar partículas de hidrogel de polímero superabsorbente-arcilla; (d) neutralizar entonces las partículas de hidrogel de polímero superabsorbente-arcilla por adición de una cantidad suficiente de un agente neutralizante para neutralizar las partículas de hidrogel en un 50 a 100% en peso; y (e) secar las partículas de hidrogel de polímero superabsorbente-arcilla neutralizadas de la etapa (d) para proporcionar las partículas superabsorbentes.

公开(公告)号：ZA200502354B

公开(公告)日：2006-05-31

申请号：ZA200502354

申请日：2005-03-22

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  MITCHELL MICHAEL A ,  WOODRUM GUY T ,  CHIANG WILLIAM G-J ,  AZAD MICHAEL M

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L20060101 ,  A61L15/60 ,  B01J20060101 ,  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.

公开(公告)号：BRPI0408557A

公开(公告)日：2006-03-21

申请号：BRPI0408557

申请日：2004-03-19

Applicant: BASF AG

Inventor： HERFERT NORBERT ,  AZAD MICHAEL M ,  CARRICO PETER W

IPC: A61L15/60 ,  C08F2/10 ,  C08F2/48 ,  C08F4/04 ,  C08F4/32 ,  C08F4/40 ,  C08F6/00 ,  C08J3/28 ,  C08J3/12

公开(公告)号：BR0313520A

公开(公告)日：2005-06-28

申请号：BR0313520

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.

公开(公告)号：PL362772A1

公开(公告)日：2004-11-02

申请号：PL36277201

申请日：2001-12-28

Applicant: BASF AG

Inventor： FRENZ VOLKER ,  HERFERT NORBERT ,  RIEGEL ULRICH ,  VOLZ WILLIAM E ,  MAJETTE THOMAS H ,  HILL JAMES M

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/26 ,  C08J3/12

Abstract: The invention relates to non-water soluble hydrogels which can swell in water, and which are coated with steric or electrostatic spacers. Before being coated, the hydrogels comprise the following characteristics: absorbency under load (AUL) (0.7 psi) of at least 20 g/g, and gel strength of at least 1600 Pa. The coated hydrogels preferably have the following characteristics: centrifuge retention capacity (CRC) of at least 24 g/g, saline flow conductivity (SFC) of at least 30 x 10 cm s/g, and free swell rate (FSR) of at least 0.15 g/g s and/or a maximum vortex time of 160 s.

公开(公告)号：DE50005996D1

公开(公告)日：2004-05-13

申请号：DE50005996

申请日：2000-01-29

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  HERFERT NORBERT ,  WANIOR MARIOLA ,  BROWN D ,  ENGELHARDT FRIEDRICH ,  WOODRUM T

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/26 ,  B01J20/30 ,  C08F8/00 ,  C08F20/06 ,  C08F20/58 ,  C08F22/02 ,  C08F22/38 ,  C08F28/02 ,  C08F220/04 ,  C08F291/00 ,  C08J3/12 ,  C08J3/24 ,  C08F220/06 ,  A61L15/00

公开(公告)号：AU2003250154A1

公开(公告)日：2004-03-11

申请号：AU2003250154

申请日：2003-07-24

Applicant: BASF AG

Inventor： ROBINSON JAMES C ,  HERFERT NORBERT ,  AZAD MICHAEL M ,  MITCHELL MICHAEL A ,  WOODRUM GUY T ,  CHIANG WILLIAM G-J ,  BROWN PATRICIA D

IPC: A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  A61L15/60 ,  B01J20/12 ,  B01J20/26 ,  C08F2/44 ,  C08J3/00 ,  C08J3/12 ,  C08J3/20 ,  C08J3/21 ,  C08J3/215 ,  C08K3/34 ,  C08L1/00 ,  C08L101/14 ,  A61L15/18

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.

公开(公告)号：PL351567A1

公开(公告)日：2003-05-05

申请号：PL35156700

申请日：2000-04-11

Applicant: BASF AG

Inventor： HAEHNLE HANS-JOACHIM ,  DYLLICK-BRENZINGER RAINER ,  SCHROEDER ULRICH ,  HERFERT NORBERT ,  RIEGEL ULRICH

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  C08J3/24 ,  C08L101/14