中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

43 records (took 0.021 seconds)

    FOAMS MADE FROM WATER-ABSORBING, BASIC POLYMERS, METHOD FOR THE PRODUCTION AND UTILIZATION THEREOF
    22.
    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：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.

    27.
    发明专利
    未知

    公开(公告)号：DE50308061D1

    公开(公告)日：2007-10-11

    申请号：DE50308061

    申请日：2003-01-30

    Applicant: BASF AG

    Inventor： CHAMP SAMANTHA ,  HAEHNLE HANS-JOACHIM ,  BECK MARTIN ,  FUNK RUEDIGER

    IPC: A61F13/53 ,  C08J9/30 ,  A61F13/00 ,  A61F13/15 ,  A61F13/49 ,  A61L15/00 ,  C08J9/12 ,  C08J9/28 ,  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.

Patent Agency Ranking