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公开(公告)号：AU2003242264A8
公开(公告)日：2004-01-19
申请号：AU2003242264
申请日：2003-06-20
Applicant: BASF AG , PROCTER & GAMBLE
Inventor： HUHN WOLFGANG EDGAR , GOLDMAN STEPHEN A , BECK MARTIN , FRENZ VOLKER , GORTH FELIX CHRISTIAN , STEPHAN OSKAR , WEIDL CHRISTIAN HUBERT , MERRIGAN STEVEN R
IPC: A61L24/00 , A61L26/00 , C08F2/38 , C08F20/04 , C09J133/02 , C09J201/00
Abstract: The present invention relates to polymerized hydrogels and processes to make such hydrogels, in particular hydrogel adhesives which are capable of attaching to mammalian skin and can be used in various personal care products, such as waste-management articles, and a variety of functional articles to be worn by a human. The hydrogels described herein are characterized by very low amount of residual starting monomers, impurities, and/or by-products that could be formed during polymerization. Specifically, the hydrogels are made by adding scavengers and/or chain transfer agent prior to polymerization. It has been found, that upon addition of same scavengers the material properties of the polymerized hydrogel differ from the properties of gels polymerized without the scavenger. This is due to the fact, that these specific scavengers act also as chain transfer agents in the radical polymerization. Further studies showed that also chain transfer agents, that are no scanvengers for residual monomer(s), impurities or byproducts influence the material properties of the polymerized hydrogel adhesive.
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公开(公告)号：AU2003242264A1
公开(公告)日：2004-01-19
申请号：AU2003242264
申请日：2003-06-20
Applicant: BASF AG
Inventor： HUHN WOLFGANG EDGAR , GOLDMAN STEPHEN A , BECK MARTIN , FRENZ VOLKER , GORTH FELIX CHRISTIAN , STEPHAN OSKAR , WEIDL CHRISTIAN HUBERT , MERRIGAN STEVEN R
IPC: A61L24/00 , A61L26/00 , C08F2/38 , C08F20/04 , C09J133/02 , C09J201/00
Abstract: The present invention relates to polymerized hydrogels and processes to make such hydrogels, in particular hydrogel adhesives which are capable of attaching to mammalian skin and can be used in various personal care products, such as waste-management articles, and a variety of functional articles to be worn by a human. The hydrogels described herein are characterized by very low amount of residual starting monomers, impurities, and/or by-products that could be formed during polymerization. Specifically, the hydrogels are made by adding scavengers and/or chain transfer agent prior to polymerization. It has been found, that upon addition of same scavengers the material properties of the polymerized hydrogel differ from the properties of gels polymerized without the scavenger. This is due to the fact, that these specific scavengers act also as chain transfer agents in the radical polymerization. Further studies showed that also chain transfer agents, that are no scanvengers for residual monomer(s), impurities or byproducts influence the material properties of the polymerized hydrogel adhesive.
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23.发明专利
公开(公告)号：AU2003244473A1
公开(公告)日：2003-09-02
申请号：AU2003244473
申请日：2003-01-30
Applicant: BASF AG
Inventor： CHAMP SAMANTHA , HAHNLE HANS-JOACHIM , BECK MARTIN , FUNK RUDIGER
IPC: A61F13/53 , A61F13/00 , A61F13/15 , A61F13/49 , A61L15/00 , C08J9/12 , C08J9/28 , C08J9/30 , C08K3/00 , C08K5/00 , C08L101/14
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：DE10055448A1
公开(公告)日：2002-05-23
申请号：DE10055448
申请日：2000-11-09
Applicant: BASF AG
Inventor： SCHROF WOLFGANG , GOEDERT UDO , BECK MARTIN , HAEHNLE HANS-JOACHIM , SCHORNICK GUNNAR
Abstract: A specific volume of the material (9) is placed in measuring vessel (7) and a compression force (12) is applied to the gel by a tube (4) guided inside a chamber (14) formed by the vessel. Expansion of the material is recorded without contact by recording a rise in height of a mark (6) on the tube. An Independent claim is made for process equipment in which the super absorbent material is held in a chamber bordered by a measuring vessel and a tube moving in the latter. Both tube and vessel are of metal and the chamber is permanently connected to a solution (17) via a filter (13) and sintered block (16).
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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.
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Patent Agency Ranking
公开(公告)号：DE102004054396A1
公开(公告)日：2006-05-11
申请号：DE102004054396
申请日：2004-11-10
Applicant: BASF AG
Inventor： BECK MARTIN , CHAMP SAMANTHA , TOENNESEN MARKUS , ZIEMER ANTJE , LOESCH DENNIS
IPC: C08F20/00 , A41D31/00 , C05G3/80 , C08F265/00 , C08J3/24 , C09K17/18 , C09K21/14 , D06M15/263 , E04B1/94
Abstract: The invention concerns water-absorbing polymers for producing fire-retarding compositions, comprising at least one interpolymerized ethylenically unsaturated monomer bearing acid groups, wherein from 51 to 64 mol % of the acid groups are present as carboxylate groups and some or all of the carboxylate groups have potassium ions as counterions, processes for producing the water-absorbing polymers and also the production of fire-retarding compositions and coatings.
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公开(公告)号：DE102004027724A1
公开(公告)日：2005-12-22
申请号：DE102004027724
申请日：2004-06-07
Applicant: BASF AG
Inventor： FRENZ VOLKER , BECK MARTIN , TOENNESEN MARKUS , STEINMETZ BERNHARD , CHAMP SAMANTHA , SCHAEFFELER LOTHAR
IPC: B41M3/00 , C09D11/00 , C09D133/04 , B32B27/08 , B65D65/38 , C08J7/04 , D06M15/263
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公开(公告)号：PL374819A1
公开(公告)日：2005-10-31
申请号：PL37481903
申请日：2003-07-03
Applicant: BASF AG
Inventor： STEPHAN OSKAR , WEIDL CHRISTIAN HUBERT , FRENZ VOLKER , GOERTH FELIX CHRISTIAN , BECK MARTIN
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29.发明专利
公开(公告)号：MXPA05000036A
公开(公告)日：2005-04-08
申请号：MXPA05000036
申请日：2003-07-03
Applicant: BASF AG
Inventor： BECK MARTIN
Abstract: La invencion se refiere a un metodo para la produccion de patrones discretos de un revestimiento adhesivo sobre un sustrato, dicho metodo comprende los pasos siguientes: (a) desplazar continua o discontinuamente el sustrato en. un dispositivo transportador; (b) en una zona de aplicacion, aplicar en forma plana un material precursor de baja viscosidad, polimerizable y/o reticulable de un material adhesivo a traves de por lo menos una abertura sustancialmente configurada en forma de una ranura de un dispositivo de aplicacion movil sobre el sustrato, por lo que se produce un patron mediante el desplazamiento del dispositivo de aplicacion con relacion al sustrato y (c) el material precursor aplicado es polimerizado y/o reticulado corriente abajo de la zona de aplicacion.
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公开(公告)号：BR0307224A
公开(公告)日：2004-12-07
申请号：BR0307224
申请日：2003-01-30
Applicant: BASF AG
Inventor： CHAMP SAMANTHA , HAHNLE HANS-JOACHIM , BECK MARTIN , FUNK RUEDIGER
IPC: A61F13/53 , A61F13/00 , A61F13/15 , A61F13/49 , A61L15/00 , C08J9/12 , C08J9/28 , C08J9/30 , C08K3/00 , C08K5/00 , C08L101/14
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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