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    Arrays of n aqueous polymer dispersions and m formulations of aqueous polymer dispersions
    44.
    发明专利
    Arrays of n aqueous polymer dispersions and m formulations of aqueous polymer dispersions 未知

    公开(公告)号：AU6913101A

    公开(公告)日：2002-01-30

    申请号：AU6913101

    申请日：2001-07-11

    Applicant: BASF AG

    Inventor： KOLTZENBURG SEBASTIAN ,  WULFF DIRK ,  ROCKEL HARALD ,  SCHROF WOLFGANG ,  ROSSMANITH PETER ,  MACHTLE WALTER

    IPC: B01J19/00 ,  C08F2/00 ,  C08F2/22 ,  C40B40/14 ,  C40B50/08

    Abstract: The present invention relates to combinatorial processes for preparing an array of n aqueous polymer dispersions by emulsion polymerization and for preparing an array of m formulations of polymer dispersions, and also to the arrays themselves. The processes are conducted at n or m spatially separate locations for the n or m mixtures, respectively. To conduct the emulsion polymerization, monomers, initiator, dispersants and, if desired, further components are reacted with one another in water as the reaction medium. To prepare the formulations, aqueous polymer dispersions are mixed with other aqueous polymer dispersions and/or further components. With all processes, each of the n or m mixtures differs from every other mixture in at least one parameter in each case which may have an influence on the properties of the resultant polymer dispersions or formulations, respectively. The advantage of the invention is that by means of these processes it is possible rapidly to prepare and characterize a large number of aqueous polymer dispersions and formulations. This leads to an acceleration in the development process for the preparation of aqueous polymer dispersions and formulations having optimized properties.

    Curable aqueous polyurethane dispersions
    45.
    发明专利
    Curable aqueous polyurethane dispersions 未知

    公开(公告)号：AU8189401A

    公开(公告)日：2002-01-08

    申请号：AU8189401

    申请日：2001-06-26

    Applicant: BASF AG

    Inventor： SCHWALM REINHOLD ,  BRUCHMANN BERND ,  VOLLINGER FRANK ,  BECK ERICH ,  SCHROF WOLFGANG ,  MEISENBURG UWE

    IPC: C08K3/18 ,  C08G18/67 ,  C08G18/78 ,  C08G18/81 ,  C08K5/00 ,  C08L75/04 ,  C09D5/00 ,  C09D5/02 ,  C09D5/46 ,  C09D175/14 ,  C09D175/16

    Abstract: A curable aqueous polyurethane dispersion substantially comprises a) at least one compound having two free isocyanate groups, at least one allophanate group and at least one C-C double bond capable of free radical polymerization, a carbonyl group or an oxygen atom in the form of an ether function being bonded directly to the double bond, b) at least one compound having at least one group reactive toward isocyanate groups and having a C-C double bond capable of free-radical polymerization, c) if required, at least one compound having at least two groups reactive towards isocyanate groups and selected from hydroxyl, mercapto, primary and/or secondary amino groups, d) at least one compound having at least one group reactive towards isocyanate groups and having at least one acid group, e) at least one basic compound for neutralizing or partially neutralizing the acid groups of the compounds d), and a thermal initiator and is used for coating substrates.

    Method for the production of coatings by uv-hardening
    47.
    发明专利
    Method for the production of coatings by uv-hardening 未知

    公开(公告)号：AU1024501A

    公开(公告)日：2001-04-23

    申请号：AU1024501

    申请日：2000-10-12

    Applicant: BASF AG

    Inventor： MEIER ANTJE ,  KRANIG WOLFGANG ,  BECK ERICH ,  REICH WOLFGANG ,  PAULUS WOLFGANG ,  SCHROF WOLFGANG

    IPC: C08F222/10 ,  C08F222/20 ,  C08F290/06 ,  C09D4/00 ,  C09D4/06

    Abstract: The invention relates to a method for the production of adhesive-free, reduced-migration and reduced-yellowing coatings, in particular Foliendeckstrichen. Inventive coating materials containing less than 0.1 weight % of a photoinitiator and even in the absence of a photoinitiator can be hardened by exposure to UV-radiation, if the coating materials contain (meth)acrylate groups (A) and >CH-O-ether structure units (B) in certain minimum amounts, whereby (A) and (B) can also be accommodated in one molecule or in different molecules. The method exhibits many economic, technical and toxicological advantages due to said reduction of the amount of photoinitiators or the absence of photoinitiators.

    Dual-cure aqueous polyurethane dispersion, useful e.g. for painting cars, based on aliphatic polyisocyanate, hydroxyalkyl acrylate, aliphatic diol, hydroxy- or mercapto-acid, basic compound and blocking agent
    48.
    发明专利
    Dual-cure aqueous polyurethane dispersion, useful e.g. for painting cars, based on aliphatic polyisocyanate, hydroxyalkyl acrylate, aliphatic diol, hydroxy- or mercapto-acid, basic compound and blocking agent 未知

    公开(公告)号：DE19947054A1

    公开(公告)日：2001-04-05

    申请号：DE19947054

    申请日：1999-09-30

    Applicant: BASF AG

    Inventor： SCHWALM REINHOLD ,  PAULUS WOLFGANG ,  MEISENBURG UWE ,  BECK ERICH ,  BRUCHMANN BERND ,  SCHROF WOLFGANG

    IPC: C08G18/08 ,  C08G18/78 ,  C08G18/80 ,  C09D175/16 ,  C08G18/67 ,  C09D175/14

    Abstract: UV- and heat-curable aqueous polyurethane dispersion based on aliphatic polyisocyanates and low-mol. wt. aliphatic compounds with at least 2 hydroxyl, mercapto or amino groups also contains compounds with NCO-reactive groups and UV-polymerizable double bonds, carboxylic or sulfonic acids with NCO-reactive groups and an isocyanate blocking agent. UV- and heat-curable aqueous polyurethane dispersions (PD), essentially comprising: (a) aliphatic polyisocyanates with an NCO functionality of 2-4.5, (b) compounds with isocyanate-reactive group(s) and C=C double bond(s) which can be polymerized with UV in presence of a photoinitiator, (c) aliphatic compounds with a mol. wt. of less than 500 and at least 2 isocyanate-reactive hydroxyl, mercapto or prim. and/or sec. amino groups, (d) compounds with isocyanate-reactive group(s) and carboxylic or sulfonic acid group(s), (e) a basic compound for at least partial neutralization of the acid groups in (d), (f) an isocyanate blocking agent (f1) with a deblocking temperature of 70-160 deg C or an added low-mol. wt. compound (f2) with blocked isocyanate groups, and (g) optionally compounds other than (b-f) with only one isocyanate-reactive group. Dispersions (PD) are obtained by reacting (a) with (b) and (c) using a stoichiometric excess of NCO groups over OH groups and with sufficient (d) and (e) for good dispersibility in aqueous media, and then introducing blocked isocyanate groups by reaction with (f1) or by addition of (f2) containing (b) as additive.

    50.
    发明专利
    未知

    公开(公告)号：DE19851139A1

    公开(公告)日：2000-05-11

    申请号：DE19851139

    申请日：1998-11-05

    Applicant: BASF AG

    Inventor： SCHROF WOLFGANG ,  SCHWALM REINHOLD ,  BECK ERICH ,  MEISENBURG UWE

    IPC: B05B5/025 ,  B05C9/14 ,  B05D3/06 ,  B05D5/06 ,  B05D7/24 ,  C08F2/48 ,  B05D3/00

    Abstract: A crosslinking reaction is initiated in a reactive paint formulation. This is coated-onto a surface at least locally, before reaction is completed. Independent claims are included for equipment carrying out the process, and for the coating so produced. The equipment employs a sprayer and/or electrostatic applicator with bell housing. Preferred features: Initiation of reaction preferably employs UV illumination (1), in conjunction with at least one photoinitiator in the formulation. Kinetics of the reaction are controlled by temperature variation, and/or by use of a sufficiently slowly-running reaction, especially a cationic polymerization, and/or by spatial separation of photoinitiator(s) from the formulation components and/or by minimizing reactivity of the photoinitiator(s). Spatial separation cited, is by nano-structuring of the paint formulation. Further stages include mixing a UV protection agent and/or pigment into the formulation before coating. A hand spray gun (6) applies the paint. In the equipment, optical fibers (3, 4) transmit UV light to the paint formulation.

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