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公开(公告)号：DE50108033D1
公开(公告)日：2005-12-15
申请号：DE50108033
申请日：2001-09-20
Applicant: BASF AG
Inventor： HAEHNLE HANS-JOACHIM , BAUMGARTL HORST , BECK MARTIN , HERFERT NORBERT , MOHR BERNHARD , HUFF JUERGEN
IPC: A61F13/53 , A61F13/00 , A61F13/02 , A61F13/15 , A61F13/49 , A61L15/26 , A61L15/42 , C08G12/32 , C08J9/14 , C08J9/36 , C08J9/00
Abstract: Hydrophilic open-celled resilient foams containing melamine-formaldehyde resins, characterized by a droplet absorption rate of less than 5 seconds and an EU standard EN ISO 14184-1 formaldehyde emission of less than 100 mg of formaldehyde/kg of foam, and obtainable by(a) heating an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsifier, a blowing agent and a curing agent to form a foam and crosslink the precondensate,(b) then conditioning the foam at from 120 to 300° C. for from 1 to 180 minutes to remove volatiles, and(c) treating the foam during the conditioning or thereafter with at least one hydrophilicizer and/or with ozone, a corona discharge or a plasma,are useful in hygiene articles to acquire, distribute and immobilize body fluids.
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42.发明专利
公开(公告)号：ZA200407048B
公开(公告)日：2005-09-05
申请号：ZA200407048
申请日：2004-09-03
Applicant: BASF AG
Inventor： CHAMP SAMANTHA , HAEHNLE HANS-JOACHIM , BECK MARTIN , FUNK RUEDIGER
IPC: A61F13/00 , A61F13/53 , A61F13/15 , A61F13/49 , A61L15/00 , C08J9/12 , C08J9/28 , C08J9/30 , C08K3/00 , C08K5/00 , C08L101/14 , C08J
Abstract: Foams composed of water-absorbing basic polymers, obtainable by (I) foaming a crosslinkable aqueous mixture including (a) at least one basic polymer whose basic groups have optionally been neutralized, (b) at least one crosslinker, (c) at least one surfactant, (d) optionally at least one solubilizer, (e) optionally thickeners, foam stabilizers, fillers, fibers and/or cell nucleators, and (f) optionally particulate water-absorbing acidic polymers, by dissolving a gas which is inert toward free radicals in the crosslinkable aqueous mixture under a pressure from 2 to 400 bar and subsequently decompressing the crosslinkable aqueous mixture to atmospheric or by dispersing fine bubbles of a gas which is inert toward free radicals, and (II) crosslinking the foamed mixture to form a hydrogel foam and if applicable adjusting the water content of the polymer foam to 1-60% by weight. Preparation of the foams by application of the abovementioned measures (I) and (II) and use of the thus obtainable foams in hygiene articles to absorb body fluids, in dressing material to cover wounds, as a sealing material, as a packaging material, as a soil improver, as a soil substitute, to dewater sludges, to absorb aqueous acidic wastes, to thicken waterborne paints or coatings in the course of disposing of residual quantities thereof, to dewater water-containing oils or hydrocarbons or as a material for filters in ventilation systems.
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公开(公告)号：DE10351267A1
公开(公告)日：2005-06-02
申请号：DE10351267
申请日：2003-10-31
Applicant: BASF AG
Inventor： BECK MARTIN , FRENZ VOLKER , KOWALSKI ANNA , SELZER ELISABETH , BAUER ERNST JUERGEN , KELLER HARALD , STEINMETZ BERNHARD
Abstract: A novel hydrogel (I), showing floating behaviour, thickens 40-90% of a solution and/or suspension to be thickened from the fluid surface and the remainder of the solution and/or suspension from the bottom of the container. Independent claims are included for: (1) the preparation of a hydrogel (I'), by post-treating a dried hydrogel with a hydrophobic compound (II) and optionally a hydrophilic compound (III); and (2) mixtures of (I') with auxiliaries, specifically one or more of biocides, antimicrobial or antibacterial agents, perfumes or fragrances, stabilizers, dyes and/or pH indicators.
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公开(公告)号：CA2542491A1
公开(公告)日：2005-05-12
申请号：CA2542491
申请日：2004-10-28
Applicant: BASF AG
Inventor： STEINMETZ BERNHARD , BECK MARTIN , SELZER ELISABETH , KELLER HARALD , BAUER ERNST JUERGEN , KOWALSKI ANNA , FRENZ VOLKER
Abstract: Polymeric particles capable of absorbing blood and/or body fluids, the polymeric particles being coated with at least one surfactant and with at least one solvent, are produced and used for absorbing blood and/or body fluids, especially in hygiene articles.
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Patent Agency Ranking45.发明专利
公开(公告)号：ES2228027T3
公开(公告)日：2005-04-01
申请号：ES99913215
申请日：1999-03-03
Applicant: BASF AG
Inventor： HAHNLE HANS-JOACHIM , SCHRODER ULRICH , BECK MARTIN , HEIDER WOLFGANG , SCHORNICK GUNNAR , ANSTOCK THOMAS
Abstract: Polímeros reticulados, en forma de espuma y absorbentes del agua, que se obtienen por (I) espumado de una mezcla acuosa polimerizable, que contiene (a) monómeros monoetilénicamente insaturados, que contienen grupos ácido, que están neutralizadas, (b) en caso dado, otro monómero monoetilénicamente insaturado, (c) reticulantes, (d) iniciadores, (e) de un 0, 1 hasta un 20 % en peso de al menos un tensioactivo, (f) en caso dado, al menos un solubilizante, y (g) en caso dado, espesantes, estabilizantes des espumado, reguladores de la polimerización, cargas y/o formadores de gérmenes celulares, llevándose a cabo es espumado mediante dispersión de burbujas finas de un gas inerte en presencia de radicales en la mezcla acuosa polimerizable, y (II) polimerizado de la mezcla espumada con formación de un hidrogel en forma de espuma y, en caso dado, ajuste del contenido de agua del polímero de un 1 hasta un 60 % en peso, caracterizado porque al menos un 20 % en mol de los monómeros (A), que contienen grupos ácido se neutralizan con alcanolaminas terciarias y/o que los grupos ácido libres del hidrogel en forma de espuma se neutralizaran después de la polimerización a un 20 % en mol con al menos una alcanolamina.
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公开(公告)号：DE10230121A1
公开(公告)日：2004-02-05
申请号：DE10230121
申请日：2002-07-04
Applicant: BASF AG
Inventor： STEPHAN OSKAR , WEIDL CHRISTIAN HUBERT , FRENZ VOLKER , GOERTH FELIX CHRISTIAN , BECK MARTIN
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公开(公告)号：AU2003257431A1
公开(公告)日：2004-01-23
申请号：AU2003257431
申请日：2003-07-03
Applicant: BASF AG
Inventor： WEIDL CHRISTIAN HUBERT , FRENZ VOLKER , GORTH FELIX CHRISTIAN , BECK MARTIN , STEPHAN OSKAR
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公开(公告)号：CA2490890A1
公开(公告)日：2004-01-15
申请号：CA2490890
申请日：2003-07-03
Applicant: BASF AG
Inventor： FRENZ VOLKER , GOERTH FELIX CHRISTIAN , BECK MARTIN , WEIDL CHRISTIAN HUBERT , STEPHAN OSKAR
Abstract: The invention relates to a method for producing discrete patterns of a sticking coating on a substrate, comprising the following steps: (a) moving continuously or discontinuously the substrate in a conveyor device; (b) flat ly applying a low viscosity, polymerizable and/or cross-linkable precursor material of a sticking material through at least one opening substantially configured in the form of a slot of a movable application device on the substrate, whereby a pattern is produced by moving the application device relative to the substrate and (c) the applied precursor material is polymerized and/or crosslinked downstream of the application area.
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公开(公告)号：DE19809540A1
公开(公告)日：1999-09-09
申请号：DE19809540
申请日：1998-03-05
Applicant: BASF AG
Inventor： HAEHNLE HANS-JOACHIM , SCHROEDER ULRICH , BECK MARTIN , HEIDER WOLFGANG , SCHORNICK GUNNAR , ANSTOCK THOMAS
IPC: A01G1/00 , A61F5/44 , A61F13/49 , A61F13/53 , A61L15/42 , A61L15/44 , A61L15/60 , C08J9/30 , C08J9/00 , A61L15/24 , C08F20/04 , C08F28/02
Abstract: The invention relates to water-absorbing, cross-linked polymerizates which are in the form of a foam and which can be obtained by (I) foaming a polymerizable aqueous mixture which contains: (a) acid groups containing monoethylenically unsaturated monomers which are optionally neutralized; (b) optional other monoethylenically unsaturated monomers; (c) cross-linking agents; (d) initiators; (e) 0.1 to 20 wt. % of at least one surface active agent; (f) optionally at least one dissolving mediator; and (g) optional thickeners, foam stabilizers, polymerization chain transfer agents, fillers and/or cell nucleating agents. Fine bubbles of a gas which is inert against radicals causes foaming by dispersion in the polymerizable aqueous mixture. The inventive polymerizates can also be obtained by (II) polymerizing the foamed mixture by forming a hydrogel which is in the form of a foam, whereby at least 20 mol % of the monomers (a) containing acid groups are neutralized with tertiary alkanolamines and/or the free acid groups of the hydrogel in the form of a foam are neutralized with at least one alkanolamine to at least 20 mol % after the polymerization, and the water content of the polymerizate which is in the form of a foam is set at 1 to 60 wt. %. The invention additionally relates to a method for producing the inventive polymerizates and to the utilization thereof in sanitary articles which are used for absorbing body fluids and in bandaging material used for covering wounds.
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