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    Superabsorbing foam, method for the production thereof, and use thereof
    32.
    发明专利
    Superabsorbing foam, method for the production thereof, and use thereof 未知

    公开(公告)号：AU2003271685A8

    公开(公告)日：2004-05-04

    申请号：AU2003271685

    申请日：2003-10-06

    Applicant: BASF AG

    Inventor： WANIOR MARIOLA ,  REIFSCHNEIDER ANDREAS ,  CHAMP SAMANTHA

    IPC: A61L15/42 ,  A61L15/60 ,  B01J20/26 ,  C08J9/00 ,  C08J9/28 ,  C09K3/10

    Abstract: A superabsorbing foam containing synthetic fibers and/or natural fibers selected from:apple, orange, tomato, wheat fibers and/or oat fibers is new. An Independent claim is included for preparation of foam of increased wet strength by foaming a crosslinkable aqueous mixture containing at least 50 mole% neutralized acid groups containing monoethylenically unsaturated monomer, or at least one basic polymer crosslinker, superabsorbing synthetic fibers and/or natural fibers selected from the above group and at least one surfactant, polymerization of the monomers or the basic polymer in the mixture to be foamed, and formation of a foamed hydrogel.

    35.
    发明专利
    未知

    公开(公告)号：DE50306536D1

    公开(公告)日：2007-03-29

    申请号：DE50306536

    申请日：2003-10-06

    Applicant: BASF AG

    Inventor： CHAMP SAMANTHA ,  WANIOR MARIOLA ,  REIFSCHNEIDER ANDREAS

    IPC: A61L15/60 ,  A61L15/42 ,  B01J20/26 ,  C08J9/00 ,  C08J9/28 ,  C09K3/10

    Abstract: A superabsorbing foam containing synthetic fibers and/or natural fibers selected from:apple, orange, tomato, wheat fibers and/or oat fibers is new. An Independent claim is included for preparation of foam of increased wet strength by foaming a crosslinkable aqueous mixture containing at least 50 mole% neutralized acid groups containing monoethylenically unsaturated monomer, or at least one basic polymer crosslinker, superabsorbing synthetic fibers and/or natural fibers selected from the above group and at least one surfactant, polymerization of the monomers or the basic polymer in the mixture to be foamed, and formation of a foamed hydrogel.

    Foams made from water-absorbing, basic polymers, method for the production and utilization thereof.
    39.
    发明专利
    Foams made from water-absorbing, basic polymers, method for the production and utilization thereof. 未知

    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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