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    11.
    发明专利
    未知

    公开(公告)号：BR0013477A

    公开(公告)日：2002-04-30

    申请号：BR0013477

    申请日：2000-08-25

    Applicant: BASF AG

    Inventor： KASTENHUBER WALTER ,  NER HUBERTUS KR ,  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.

    13.
    发明专利
    未知

    公开(公告)号：AT288925T

    公开(公告)日：2005-02-15

    申请号：AT02754870

    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.

    A three-step process and a device useful for preparation of polymer dispersions with a conveyor unit for conveying media liable to coagulation such as dispersions for the preparation of homo- and copolymers by emulsion polymerization
    15.
    发明专利
    A three-step process and a device useful for preparation of polymer dispersions with a conveyor unit for conveying media liable to coagulation such as dispersions for the preparation of homo- and copolymers by emulsion polymerization 未知

    公开(公告)号：DE10134023A1

    公开(公告)日：2003-01-23

    申请号：DE10134023

    申请日：2001-07-12

    Applicant: BASF AG

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

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

    Abstract: A 3-step process for preparation of polymer dispersions from monomers by emulsion polymerization involves: (a) addition (sic) of water as inert solvent and dispersion agent; (b) addition of initiator; and (c) addition of part or the whole amount of monomers directly or as an emulsion in the presence of further water and emulsion polymerization at 40-120 deg C is new. A process for preparation of polymer dispersions from monomers from alkyl (meth)acrylates, 1-20C vinyl esters of carboxylic acids, vinylaromatic compounds, nitriles, vinyl halogens, vinylether, 2-8C hydrocarbon with one or two double bonds, or OH group containing monomers by emulsion polymerization at least at 40 deg C in the presence of a radical polymerization initiator. At least 85% of the polymer obtained from one or more of these monomers is prepared in the three steps: (a) addition (sic) of water as inert solvent and dispersion agent; (b) addition of initiator; and (c) addition of part or the whole amount of monomers directly or as an emulsion in the presence of further water and optionally dispersing agent, and emulsion polymerization at 40-120 deg C. Steps (a) to (c) can be individual steps or can be part of a gradient process, and in the individual or all the stages the reaction medium dispersion is fed to the polymerization vessel (2) through an external circuit (10), which has one or more low shear cylinders or membrane pumps (7) and at least one heat exchanger (8) of essentially laminar streaming profile. An Independent claim is included for the apparatus for storage and addition of the reaction and adjuvant materials, a reaction vessel (2), a heating/cooling jacket (3), a device (6) for discharging the vessel (2), an external circuit (10), with one or more low shear supply cylinders or membrane pumps, at least one heat exchanger (8) with a laminar or turbulent profile ,and connecting pipes (20).

    16.
    发明专利
    未知

    公开(公告)号：DE10103709A1

    公开(公告)日：2002-08-01

    申请号：DE10103709

    申请日：2001-01-26

    Applicant: BASF AG

    Inventor： KIRSCH STEFAN ,  KELLER ANDREAS ,  MEISTER MARTIN ,  TSCHANG CHUNG-JI ,  FUNKHAUSER STEFFEN

    IPC: C08F2/22

    Abstract: The invention relates to a method for producing an aqueous polymer dispersion by means of radically initiated aqueous emulsion polymerisation of at least one ethylenically unsaturated monomer in a polymerisation container comprising an external circuit leading away from said polymerisation container and back thereto.

    Device for transporting polymer dispersions
    17.
    发明专利
    Device for transporting polymer dispersions 未知

    公开(公告)号：AU6999800A

    公开(公告)日：2001-03-19

    申请号：AU6999800

    申请日：2000-08-25

    Applicant: BASF AG

    Inventor： KASTENHUBER WALTER ,  KRONER 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.

    Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear poured support layer of plastic
    20.
    发明专利
    Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear poured support layer of plastic 未知

    公开(公告)号：DE102005027547A1

    公开(公告)日：2006-12-21

    申请号：DE102005027547

    申请日：2005-06-14

    Applicant: BASF AG

    Inventor： DEARMITT CHRIS ,  KAVARNOU ASIMINA ,  MC KEE GRAHAM EDMUND ,  FUNKHAUSER STEFFEN

    IPC: C08J5/12 ,  B32B7/02 ,  B32B27/08 ,  C08J7/16 ,  C08L51/00 ,  C08L55/00 ,  C08L69/00

    Abstract: Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear-poured support layer of plastic, where the composite layered plate comprising a substrate layer; optionally an intermediate layer; optionally a hard intermediate layer; and a silicon oxide surface layer obtained by plasma separation of silanes or siloxane with atmospheric pressure. Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear-poured support layer of plastic, where the composite layered plate or -foil comprising a substrate layer containing elastic-rubber graft copolymers as component A (1-99 wt.%), one or more hard copolymers containing vinyl aromatic monomer units as component B (1-99 wt.%), polycarbonate or polyurethane as component C (0-80 wt.%) and fiber- or particle shaped fillers or its mixture as component D (0.50 wt.%); optionally an intermediate layer containing impact resistant-modified polymethyl methacrylate and/or polycarbonate and/or styrene copolymers; optionally a hard intermediate layer containing polymethyl methacrylate and/or poly (alpha-methyl) styrene-acrylonitrile and/or polystyrene acrylonitrile, polyurethane and/or polycarbonate; and a silicone oxide (SiOx) surface layer obtained by plasma separation of silanes or siloxanes with atmospheric pressure. Independent claims are included for: (1) the preparation of molded part; (2) a method for increasing the scratching stability of molded part, comprising plasma coating of the substrate layer, intermediate layer, hard intermediate layer and silicone oxide layer, in atmospheric pressure; and (3) a procedure for the preparation of molded part with self-cleaning surface, comprising additional coating of molded part with photo catalytic active material.

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