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    Preparation of emulsion homo- and copolymers and device therefore
    5.
    发明专利
    Preparation of emulsion homo- and copolymers and device therefore 未知

    公开(公告)号：AU746031B2

    公开(公告)日：2002-04-11

    申请号：AU3990497

    申请日：1997-10-02

    Applicant: BASF AG

    Inventor： KRONER HUBERTUS ,  KLANIG WOLFGANG ,  MORRISON BRADLEY RONALD ,  KLOSTERMANN RAINER ,  SCHOPKE HOLGER ,  KASTENHUBER WALTER

    IPC: B01J19/18 ,  C08F2/00 ,  C08F2/22 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F20/00 ,  C08F36/06 ,  C08F20/06 ,  C08F20/10 ,  C08F20/56 ,  C08F20/44

    Abstract: In a process for the preparation of homo or copolymers of at least one polymerisable monomer consisting of styrene, butadiene, vinyl chloride, vinyl acetate, vinylidene chloride, alkyl(meth)acrylate, meth(acrylic)acid, (meth)acrylonitrile or (meth)acrylamide by an emulsion polymerisation technique, reaction is carried out at at least 40 degrees C in the presence of a dispersing agent and a radical initiator such that at least 85 wt.% of the polymer is prepared by (a) mixing water, inert solvent and optionally dispersing agent and optionally a portion of the monomer, (b) adding initiator and (c) adding the rest of the monomer, optionally in the form of an emulsion with further water and optionally further dispersing agent or processing aids. Steps (a) and (b) or (b) and (c) may be carried out together at 40-120 degrees C and the resulting dispersion from each step or all the steps is recirculated around a flow loop external to the reaction vessel containing a low shear pump and a heat exchanger exhibiting a laminar flow profile. An apparatus for carrying out the reaction is also claimed and comprises means for storing and feeding reactants and processing aids, a reactor vessel with a heating/cooling mantle and means for draining, an external flow loop with a low shear pump and heat exchanger exhibiting a laminar flow profile and necessary connecting pipes.

    Preparation of emulsion homo- and copolymers and device therefore
    6.
    发明专利
    Preparation of emulsion homo- and copolymers and device therefore 未知

    公开(公告)号：AU3990497A

    公开(公告)日：1998-04-09

    申请号：AU3990497

    申请日：1997-10-02

    Applicant: BASF AG

    Inventor： KRONER HUBERTUS ,  KLANIG WOLFGANG ,  MORRISON BRADLEY RONALD ,  KLOSTERMANN RAINER ,  SCHOPKE HOLGER ,  KASTENHUBER WALTER

    IPC: B01J19/18 ,  C08F2/00 ,  C08F2/22 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F20/00 ,  C08F36/06 ,  C08F20/06 ,  C08F20/10 ,  C08F20/56 ,  C08F20/44

    Abstract: In a process for the preparation of homo or copolymers of at least one polymerisable monomer consisting of styrene, butadiene, vinyl chloride, vinyl acetate, vinylidene chloride, alkyl(meth)acrylate, meth(acrylic)acid, (meth)acrylonitrile or (meth)acrylamide by an emulsion polymerisation technique, reaction is carried out at at least 40 degrees C in the presence of a dispersing agent and a radical initiator such that at least 85 wt.% of the polymer is prepared by (a) mixing water, inert solvent and optionally dispersing agent and optionally a portion of the monomer, (b) adding initiator and (c) adding the rest of the monomer, optionally in the form of an emulsion with further water and optionally further dispersing agent or processing aids. Steps (a) and (b) or (b) and (c) may be carried out together at 40-120 degrees C and the resulting dispersion from each step or all the steps is recirculated around a flow loop external to the reaction vessel containing a low shear pump and a heat exchanger exhibiting a laminar flow profile. An apparatus for carrying out the reaction is also claimed and comprises means for storing and feeding reactants and processing aids, a reactor vessel with a heating/cooling mantle and means for draining, an external flow loop with a low shear pump and heat exchanger exhibiting a laminar flow profile and necessary connecting pipes.

    7.
    发明专利
    未知

    公开(公告)号：ID17248A

    公开(公告)日：1997-12-11

    申请号：ID973346

    申请日：1997-10-02

    Applicant: BASF AG

    Inventor： KRONER HUBERTUS ,  KLANIG WOLFGANG ,  MORRISON BRADLEY RONALD ,  SCHOPKE HOLGER ,  KASTENHUBER WLATER

    IPC: B01J19/18 ,  C08F2/00 ,  C08F2/22 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F20/00 ,  C08F36/06

    Abstract: In a process for the preparation of homo or copolymers of at least one polymerisable monomer consisting of styrene, butadiene, vinyl chloride, vinyl acetate, vinylidene chloride, alkyl(meth)acrylate, meth(acrylic)acid, (meth)acrylonitrile or (meth)acrylamide by an emulsion polymerisation technique, reaction is carried out at at least 40 degrees C in the presence of a dispersing agent and a radical initiator such that at least 85 wt.% of the polymer is prepared by (a) mixing water, inert solvent and optionally dispersing agent and optionally a portion of the monomer, (b) adding initiator and (c) adding the rest of the monomer, optionally in the form of an emulsion with further water and optionally further dispersing agent or processing aids. Steps (a) and (b) or (b) and (c) may be carried out together at 40-120 degrees C and the resulting dispersion from each step or all the steps is recirculated around a flow loop external to the reaction vessel containing a low shear pump and a heat exchanger exhibiting a laminar flow profile. An apparatus for carrying out the reaction is also claimed and comprises means for storing and feeding reactants and processing aids, a reactor vessel with a heating/cooling mantle and means for draining, an external flow loop with a low shear pump and heat exchanger exhibiting a laminar flow profile and necessary connecting pipes.

    HOMOPOLIMEROS Y COPOLIMEROS PREPARADOS POR EMULSION Y DISPOSITIVO PARA DICHA PREPARACION.
    9.
    发明专利
    HOMOPOLIMEROS Y COPOLIMEROS PREPARADOS POR EMULSION Y DISPOSITIVO PARA DICHA PREPARACION. 未知

    公开(公告)号：MX9707559A

    公开(公告)日：1998-04-30

    申请号：MX9707559

    申请日：1997-10-02

    Applicant: BASF AG

    Inventor： KRONER HUBERTUS ,  KLANIG WOLFGANG ,  MORRISON BRADLEY RONALD ,  KLOSTERMANN RAINER ,  SCHOPKE HOLGER ,  KASTENHUBER WALTER

    IPC: B01J19/18 ,  C08F2/00 ,  C08F2/22 ,  C08F12/08 ,  C08F14/06 ,  C08F14/08 ,  C08F18/08 ,  C08F20/00 ,  C08F36/06

    Abstract: Se presenta un proceso y un dispositivo correspondientemente apropiado para preparar homopolímeros o bien copolímeros de al menos uno de los monomeros polímerizables del grupo que consiste de estíreno, butadieno, cloruro de vinilo , acetato de vinilo, cloruro de vinilideno, (met)acrilato de alquilo, ácido (met)acrilico, (met)acrilontrilo y (met)acrilamída, en donde la reaccion de lleva a cabo a una temperatura de al menos 40 degree C en precencia de un auxiliar de dispersion y de un iniciador de polímerizacion de radicales libres de tal manera que al menos el 85% en peso del polímero se forma de estos monomeros. En el proceso de etapas multiples el procedimiento es tal que: a) en una etapa se agrega agua como solvente que es inerte en la reaccion, y auxiliares de dispersion, semillas y una primera porcion de monomero(s) se agregan, si se desea, b) en una etapa, se agrega un iniciador, y c) en una tercera etapa se agrega el resto del o de los monomero(s) directamente o bien en forma de emulsion y en presencia de agua adicional y, si se desea, auxiliar de dispersion adicional o bien otros auxiliares, es también posible llevar a cabo cualquiera de dos atapas en forma de una etapa unica. La mezcla de la reaccion que se encuentra en forma de emulsion, es desplazada en todas las etapas o bien en ciertas etapas a través de un circuito externo que lleva a partir del recipiente de reaccion y de regreso hacia dicho recipiente de reaccion y que comprende al menos una bomba de bajo esfuerzo cortante y al menos un intercambiador de calor que tiene un perfil de flujo esencialmente laminar. Los productos preparados mediante este proceso, que incluye un intercambiador de calor que tiene un perfil de flujo esencialmente laminar. Los productos preparados mediante este proceso incluye unos períodos cortos de preparacion, tienen buenas propiedades de desempeño (para uniones adhesivas, por ejemplo).

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