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    COMPOSICION ACUOSA Y SU EMPLEO PARA LA FABRICACION DE PAPEL.
    11.
    发明专利
    COMPOSICION ACUOSA Y SU EMPLEO PARA LA FABRICACION DE PAPEL. 未知

    公开(公告)号：ES2277281T3

    公开(公告)日：2007-07-01

    申请号：ES04763464

    申请日：2004-07-23

    Applicant: BASF AG

    Inventor： HAHNLE HANS-JOACHIM ,  ESSER ANTON ,  BRAIG VOLKER ,  BLUM RAINER ,  BAUMANN PETER ,  DUPUIS JACQUES

    IPC: D21H17/45 ,  C08F8/12 ,  C08F8/44 ,  C08F226/02 ,  C08J5/10 ,  C08L33/14 ,  C08L33/26 ,  C08L39/02 ,  C08L43/02 ,  D21H17/34

    Abstract: Composición acuosa, que abarca, al menos, una carga finamente dividida y, al menos, un copolímero anfótero soluble en agua, que puede obtenerse mediante copolimerización de una mezcla de monómeros, que contiene a) al menos una amida del ácido N-vinilcarboxílico de la fórmula general I en la que R1 y R2 significan, independientemente entre sí, H o alquilo con 1 hasta 6 átomos de carbono, b) al menos un monómero, elegido entre los ácidos sulfónicos, los ácidos fosfónicos, los ésteres del ácido fosfórico y sus derivados, monoetilénicamente insaturados, c) en caso dado, al menos, un monómero elegido entre los ácidos monocarboxílicos y los ácidos dicarboxílicos, sus sales y los anhídridos de los ácidos dicarboxílicos, monoetilénicamente insaturados, d) en caso dado, al menos, un monómero monoetilénicamente insaturado diferente de los componentes a) hasta c), que esté exento de grupos nitrilo, y e) en caso dado, al menos, un compuesto que presente en la molécula, al menos, dos dobles enlaces etilénicamente insaturados, con la condición de que la mezcla de los monómeros contenga, al menos, un monómero b) o c) con, al menos, un grupo ácido libre y/o un grupo ácido en forma de sal, y a continuación hidrólisis parcial o completa de los grupos -CO-R1 procedentes del monómero I incorporado por polimerización en el copolímero.

    14.
    发明专利
    未知

    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.

    FOAMS MADE FROM WATER-ABSORBING, BASIC POLYMERS, METHOD FOR THE PRODUCTION AND UTILIZATION THEREOF
    20.
    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.

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