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公开(公告)号：ES2254760T3
公开(公告)日：2006-06-16
申请号：ES02785134
申请日：2002-09-26
Applicant: BASF AG
Inventor： FUNK RUDIGER , HERFERT NORBERT , WANIOR MARIOLA
Abstract: Mezcla de polímeros que contiene polímeros que forman hidrogel absorbentes de líquidos acuosos de diferente valor de pH por debajo de pH 7, que se pueden obtener respectivamente mediante polimerización de ácidos carboxilícos con insaturación olefínica o sus derivados, ascendiendo la diferencia entre los valores de pH de polímeros que forman hidrogel absorbentes de líquidos acuosos situados a la mayor distancia a 0, 5 unidades de pH o más.
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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：ES2251523T3
公开(公告)日：2006-05-01
申请号：ES01985717
申请日：2001-09-20
Applicant: BASF AG
Inventor： HAHNLE HANS-JOACHIM , BAUMGARTL HORST , BECK MARTIN , HERFERT NORBERT , MOHR BERNHARD , HUFF JURGEN
IPC: A61F13/53 , A61F13/00 , A61F13/02 , A61F13/15 , A61F13/49 , A61L15/26 , A61L15/42 , C08G12/32 , C08J9/14 , C08J9/36 , C08J9/00
Abstract: Espumas hidrófilas, de células abiertas, elásticas, a partir de resinas de melamina/formaldehído, caracterizadas porque tienen una velocidad de absorción de gotas menor que 5 segundos y una emisión de formaldehído según la norma EU EN ISO 14184-1 de menos de 100 mg de formaldehído/kg de espuma.
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公开(公告)号：ES2231254T3
公开(公告)日：2005-05-16
申请号：ES00960665
申请日：2000-09-15
Applicant: BASF AG
Inventor： ENGELHARDT FRIEDRICH , FRENZ VOLKER , HERFERT NORBERT , RIEGEL ULRICH , WEISMANTEL MATTHIAS , HEIDE WILFRIED
Abstract: Polímero formador de hidrogel con (i)una Saline Flow Conductivity (SFC) de al menos 40 x 10-7 cm3/g, (ii) un AUL 0, 7 psi (4826, 5 Pa) de al menos 20 g/g, y (iii) un índice de Frangibility de al amenos un 60 %.
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公开(公告)号：DE50008867D1
公开(公告)日：2005-01-05
申请号：DE50008867
申请日：2000-09-15
Applicant: BASF AG
Inventor： ENGELHARDT FRIEDRICH , FRENZ VOLKER , HERFERT NORBERT , RIEGEL ULRICH , WEISMANTEL MATTHIAS , HEIDE WILFRIED
Abstract: Hydrogel-forming polymers which have:(i) a Saline Flow Conductivity of at least 40x10-7 cm3s/g;(ii) an AUL 0.7 psi (4826.5 Pa) of at least 20 g/g; and(iii) a Frangibility Index of at least 60%,are useful in hygienic articles such as incontinence briefs for adults and diapers for infants.
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Patent Agency Ranking
公开(公告)号：AT266048T
公开(公告)日：2004-05-15
申请号：AT99958065
申请日：1999-11-18
Applicant: BASF AG
Inventor： DANIEL THOMAS , RIEGEL ULRICH , WEISMANTEL MATTHIAS , HERFERT NORBERT , ENGELHARDT FRIEDRICH
IPC: A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/18 , A61L15/60 , C08F2/44 , C08F20/04 , C08K3/34
Abstract: The invention relates to hydrogels capable of absorbing aqueous fluids, which hydrogels are produced by polymerization of olefinically unsaturated carboxylic acids or their derivatives. The hydrogels are characterized in that before, during or after the polymerization reaction and before drying a silicic acid alkali salt of the general formula (I) M2O×nSiO2 is added to the polymerization reaction mixture. In said formula M is an alkali metal and n is a number between 0.5 and 4. The hydrogel obtained in this way is then dried at an elevated temperature. The invention also relates to a method for producing said hydrogels and to their use for absorbing aqueous fluids.
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公开(公告)号：AT263788T
公开(公告)日：2004-04-15
申请号：AT00906246
申请日：2000-01-29
Applicant: BASF AG
Inventor： FUNK RUEDIGER , HERFERT NORBERT , WANIOR MARIOLA , BROWN PATRICIA D , ENGELHARDT FRIEDRICH , WOODRUM GUY T
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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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49.发明专利
公开(公告)号：PL347244A1
公开(公告)日：2002-03-25
申请号：PL34724499
申请日：1999-09-28
Applicant: BASF AG
Inventor： DENTLER JOACHIM , HERFERT NORBERT , SCHLIWA RUDOLF , STUEVEN UWE , ENGELHARDT FRITZ
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: Water-swellable hydrophilic polymers are prepared by neutralization of the acidic hydrogel having a degree of neutralization of 0-40 mol % to an ultimate degree of neutralization of 60-85 mol % by mixing with a neutralizing agent in a mincer comprising a system of screw, rotating blade, restricted flow zone and breaker plate, whereinthe mincer has a power output of from 1000 to 6000 Wh/m3the hydrogel passes through a zone having-an energy dissipation density of from 400 to 800 W/1 of mixing volumethe average residence time of the hydrogel in the mincer is from 5 to 30 secondsthe breaker plate has an open area of from 20 to 40%.
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公开(公告)号：DE10034505A1
公开(公告)日：2002-02-21
申请号：DE10034505
申请日：2000-07-15
Applicant: BASF AG
Inventor： HAEHNLE HANS-JOACHIM , BAUMGARTL HORST , HERFERT NORBERT
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