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公开(公告)号：DE19807502B4
公开(公告)日：2004-04-08
申请号：DE19807502
申请日：1998-02-21
Applicant: BASF AG
Inventor： FUNK RUEDIGER , FRENZ VOLKER , RIEGEL ULRICH , WEISMANTEL MATTHIAS , ENGELHARDT FRITZ , DANIEL THOMAS
IPC: C07D263/20 , A61L15/00 , A61L15/60 , C08F8/30 , C08J3/24 , B65D65/42 , B65D81/20 , C08F220/06 , D06M15/19
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公开(公告)号：DE59908601D1
公开(公告)日：2004-03-25
申请号：DE59908601
申请日：1999-11-23
Applicant: BASF AG
Inventor： RIEGEL ULRICH , WEISMANTEL MATTHIAS , FRENZ VOLKER , DANIEL THOMAS , ENGELHARDT FRITZ
IPC: A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/00 , C08F8/30 , C08J3/24 , C08K5/357 , C08L101/00
Abstract: Liquid-absorbent polymers are prepared by a process for the gel and/or surface postcrosslinking of water-absorbent polymers by the polymer being treated with a surface postcrosslinking solution and being postcrosslinked and dried during and after the treatment by raising the temperature, wherein the crosslinker comprises a compound of the formula Iwhere R is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, trialkylsilyl or acetyl and R , R , R , R , R , R are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, dissolved in an inert solvent, and are used in hygiene articles, packaging materials and nonwovens.
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公开(公告)号：AT259834T
公开(公告)日：2004-03-15
申请号：AT99963322
申请日：1999-11-23
Applicant: BASF AG
Inventor： RIEGEL ULRICH , WEISMANTEL MATTHIAS , FRENZ VOLKER , DANIEL THOMAS , ENGELHARDT FRITZ
IPC: A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/00 , C08F8/30 , C08J3/24 , C08K5/357 , C08L101/00
Abstract: Liquid-absorbent polymers are prepared by a process for the gel and/or surface postcrosslinking of water-absorbent polymers by the polymer being treated with a surface postcrosslinking solution and being postcrosslinked and dried during and after the treatment by raising the temperature, wherein the crosslinker comprises a compound of the formula Iwhere R is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, trialkylsilyl or acetyl and R , R , R , R , R , R are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, dissolved in an inert solvent, and are used in hygiene articles, packaging materials and nonwovens.
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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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Patent Agency Ranking
公开(公告)号：AU2003244472A1
公开(公告)日：2003-09-02
申请号：AU2003244472
申请日：2003-01-30
Applicant: BASF AG
Inventor： HAHNLE HANS-JOACHIM , FUNK RUDIGER , HEIDER WOLFGANG , SCHORNICK GUNNAR , FRENZ VOLKER
IPC: A61F13/53 , A61F13/00 , A61F13/49 , A61L15/16 , A61L15/60 , C08F6/00 , C08J9/00 , C08J9/36 , C08L101/14 , C08F6/10
Abstract: A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams containing units derived from monoethylenically unsaturated acids, which comprises treating the formed articles with at least 0.5% by weight of a polymer containing primary and/or secondary amino groups and having a molar mass of at least 300, the formed foam articles thus obtainable and use of the wet strength enhanced formed foam articles in hygiene articles.
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公开(公告)号：AU1232502A
公开(公告)日：2002-04-29
申请号：AU1232502
申请日：2001-10-17
Applicant: BASF AG
Inventor： FRENZ VOLKER , HERFERT NORBERT , WEISMANTEL MATTHIAS , RIEGEL ULRICH , ENGELHARDT FRIEDRICH , FUNK RUDIGER
IPC: A61L15/60 , C08F220/04 , C08F271/02
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公开(公告)号：DE10013217A1
公开(公告)日：2001-09-20
申请号：DE10013217
申请日：2000-03-17
Applicant: BASF AG
Inventor： ENGELHARDT FRIEDRICH , HERFERT NORBERT , DANIEL THOMAS , FRENZ VOLKER , RIEGEL ULRICH
Abstract: Hydrophilic, swellable, hydrogel-forming polymers (I) containing an aluminosilicate component (II).
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公开(公告)号：BR9908078A
公开(公告)日：2000-10-24
申请号：BR9908078
申请日：1999-02-18
Applicant: BASF AG
Inventor： FUNK RUEDIGER , FRENZ VOLKER , STUEVEN UWE , ENGELHARDT FRITZ , DANIEL THOMAS
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公开(公告)号：BR9908006A
公开(公告)日：2000-10-24
申请号：BR9908006
申请日：1999-02-19
Applicant: BASF AG
Inventor： FUNK RUEDIGER , FRENZ VOLKER , RIEGEL ULRICH , WEISMANTEL MATTHIAS , ENGELHARDT FRITZ , DANIEL THOMAS
IPC: C07D263/20 , A61L15/00 , A61L15/60 , C08F8/30
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