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    METHOD AND DEVICE FOR PRODUCING POLYMER DISPERSIONS
    1.
    发明申请
    METHOD AND DEVICE FOR PRODUCING POLYMER DISPERSIONS 审中-公开
    制备聚合物分散体的方法和装置

    公开(公告)号：WO03006510A3

    公开(公告)日：2003-05-01

    申请号：PCT/EP0207748

    申请日：2002-07-11

    Applicant: BASF AG ,  FUNKHAUSER STEFFEN ,  RICHTER FRAUKE ,  KASTENHUBER WALTER ,  LAPPE ANDREAS ,  KESSLER JOCHEN ,  HUEMMER WOLFGANG ,  WILDBURG GERALD

    Inventor： FUNKHAUSER STEFFEN ,  RICHTER FRAUKE ,  KASTENHUBER WALTER ,  LAPPE ANDREAS ,  KESSLER JOCHEN ,  HUEMMER WOLFGANG ,  WILDBURG GERALD

    IPC: C08F2/01 ,  C08F2/08 ,  C08F2/22 ,  C08F291/00

    CPC classification number: C08F2/22

    Abstract: The invention relates to a method for producing polymer dispersions of at least one of the monomers that can be polymerized from the following groups: alkyl(meth)acrylates, vinyl esters of carboxylic acids comprising 1-20 C atoms, vinyl aromatic compounds, nitriles, vinyl halides, vinyl ethers, hydrocarbons comprising 2-8 C atoms and monomers containing hydroxyl groups, using emulsion polymerization technology at a polymerization temperature of at least 40 DEG C in the presence of a radical polymerization initiator. The polymer which is produced from at least 85 wt. % of one or several of said monomers is produced in the following way: in a first stage, water, which acts as an inert solvent during the reaction, optionally a dispersant, seed particles and optionally a first sub-quantity of the monomer(s) are added. In a second stage, the initiator is added. In a third stage, the remaining quantity or the total quantity of the monomer(s) is added directly or in the form of an emulsion in the presence of additional water. The first and second stages, or the second and third stages respectively can be carried out as a single-stage, whereas the second and third stages can also be carried out in a gradient operation. In individual or all stages of the reaction mixture that is present as a dispersion, said mixture is displaced by an external circuit (10) that leads from and returns to the polymerization container (2). The circuit comprises one or more hose or cylinder diaphragm pumps (7), which transport the product with a low shear rate and at least one heat exchanger (8), whereby the polymerization temperature lies between 40 DEG C and 120 DEG C.

    Abstract translation: 本发明涉及一种用于制备可聚合的单体的olymerdispersionen至少一个选自烷基的基团的（甲基）丙烯酸酯，具有1-20个碳原子，乙烯基芳族化合物，腈，乙烯基卤化物，乙烯基醚，具有2-8个烃羧酸乙烯基酯 C-原子和含羟基的单体在自由基聚合引发剂存在下在至少40℃的聚合温度下进行乳液聚合。 的至少85重量％的一种或多种这些单体所得的聚合物是通过在第一阶段水比在反应惰性溶剂中，任选的分散剂，任选的种子，和单体（一个或多个）的任选的第一部分被指定制备的％。 第二步，添加引发剂。 在第三步中，将剩余物或完全量的单体直接或以乳液形式在另外的水和任选的其他分散助剂或其它赋形剂的存在下加入。 第一和第二阶段或者第二和第三阶段也可以分别在一个阶段中被驱动，而第二和第三阶段也可以在梯度模式中被穿过。 在本作为分散体的反应混合物的单个或所有阶段是这样的一个领先的从与返回到聚合反应器（2）的外部回路（10）移动时，所述（一个或多个非常低剪切促进气缸或管状隔膜泵（7）和至少一个热交换器 8），其中聚合温度在40℃和120℃之间

    4.
    发明专利
    未知

    公开(公告)号：DE50005445D1

    公开(公告)日：2004-04-01

    申请号：DE50005445

    申请日：2000-08-25

    Applicant: BASF AG

    Inventor： KASTENHUBER WALTER ,  KROENER HUBERTUS ,  FUNKHAUSER STEFFEN

    IPC: F04D29/22

    Abstract: The invention relates to an apparatus for transporting polymer dispersions, said apparatus being capable of being driven by a drive and being designed as an impeller ( 28 ). It is possible for said impeller both to be surrounded by a housing and to protrude freely into the polymer dispersion contained in the reactor tank. A number of vanes ( 2 ) are mounted in the region of the hub ( 1 ) of the impeller ( 28 ) in such a way that pumping spaces ( 5, 25 ) on the front side ( 7 ) and rear side ( 8 ) of the impeller ( 28 ) are flowed through uniformly.

    5.
    发明专利
    未知

    公开(公告)号：BRPI0606918A2

    公开(公告)日：2009-12-01

    申请号：BRPI0606918

    申请日：2006-02-23

    Applicant: BASF AG

    Inventor： GASCHLER WOLFGANG ,  DANNER THOMAS ,  BAUDER ANDREAS ,  FUNKHAUSER STEFFEN ,  HAMERS CHRISTOPH

    IPC: C08F2/24 ,  B01F3/08

    Abstract: Preparation of an aqueous polymer dispersion comprises radically initiated polymerization of an ethylenically unsaturated monomer in the presence of dispersing additives, optionally a water soluble organic solvent in an aqueous medium, where at least a partial quantity of ethylenic unsaturated monomer and an aqueous soluble organic solvent exists with an average droplet diameter of = 1000 nm (mini-emulsion). Preparation of an aqueous polymer dispersion comprises radically initiated polymerization of an ethylenically unsaturated monomer in the presence of dispersing additives, optionally a water soluble organic solvent in an aqueous medium, where at least a partial quantity of ethylenically unsaturated monomer and an aqueous soluble organic solvent exists with an average droplet diameter of = 1000 nm (mini-emulsion), where the mini-emulsion is prepared by a raw emulsion with an average diameter of >= 2 mu m, containing at least partial quantity of water, dispersing additives, ethylenically unsaturated monomer, optionally a water soluble organic solvent, and passed through a micro-porous membrane with an average pore diameter of = 1000 nm.

    7.
    发明专利
    未知

    公开(公告)号：DE50202245D1

    公开(公告)日：2005-03-17

    申请号：DE50202245

    申请日：2002-07-11

    Applicant: BASF AG

    Inventor： FUNKHAUSER STEFFEN ,  RICHTER FRAUKE ,  KASTENHUBER WALTER ,  LAPPE ANDREAS ,  KESSLER JOCHEN ,  HUEMMER WOLFGANG ,  WILDBURG GERALD

    IPC: C08F2/01 ,  C08F2/08 ,  C08F2/22 ,  C08F291/00

    Abstract: A process for preparing polymer dispersions of at least one of the polymerizable monomers from the groups consisting of alkyl (meth)acrylates, vinyl esters of carboxylic acids having 1-20 carbon atoms, vinylaromatic compounds, nitrites, vinyl halides, vinyl ethers, hydrocarbons having 2-8 carbon atoms, and hydroxyl-containing monomers in emulsion polymerization technology at a polymerization temperature of at least 40° C., in the presence of a free-radical polymerization initiator, which comprises preparing the polymer, which forms to at least 85% by weight from one or more of these monomers. In a first stage, water, as reaction-inert solvent, dispersing assistants where appropriate, seed where appropriate, and a first portion of monomer(s), where appropriate, are introduced. In a second stage, the initiator is added, and in a third stage, the remainder or full amount of monomer(s) are added directly or in emulsion form in the presence of further water and, where appropriate, further dispersing assistant or other auxiliaries. It is possible for the first and second stages or second and third stages in each case also to be run in one stage while second and third stages can be run through in a gradient procedure, and in all or some stages the reaction mixture present as a dispersion is moved by an external circuit ( 10 ) which leads from and back to the polymerization vessel ( 2 ) and which comprises one or more extremely low-shear-conveying cylinder or tubular diaphragm pumps ( 7 ) and at least one heat exchanger ( 8 ), the polymerization temperature being between 40° C. and 120° C.

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