82.
    发明专利
    未知

    公开(公告)号:DE59912761D1

    公开(公告)日:2005-12-15

    申请号:DE59912761

    申请日:1999-11-05

    Applicant: BASF AG

    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.

    86.
    发明专利
    未知

    公开(公告)号:DK0869998T3

    公开(公告)日:2002-07-01

    申请号:DK97900552

    申请日:1997-01-02

    Applicant: BASF AG

    Abstract: The invention concerns radiation-hardenable coatings processed from melt, solution or dispersion and containing as binders copolymers comprising the following: a) at least one monomer of either the general formula (I) CH2 = C(R )-CO-OR , in which R stands for H, CH3 or C2H5 and R stands for H, CnH2n+1, n being 1-30, an alicyclic, araliphatic or heterocyclic group, a hydroxyalkyl-, alkoxyalkyl-, glycidyl- or aminoalkyl group, or of the general formula (II) CH2 = C(R )-CO-NR R , in which R stands for H or CH3, R and R can be identical or different and stand for H, CH2OH, CnH2n+1, n being 1-30, or CH2OR , R standing for CmH2m+1 and m being 1-12; and b) at least one copolymerisable ethylenically unsaturated organic compound of general formula (A), in which R' and R'' can be identical or different and stand for H or CpH2p+1, p being 1-6, cycloalkyl, aryl or aralkyl, and R''' stands for an acryloyl, methacryloyl, ethacryloyl or cinnamyloyl group and this compound can be partially replaced by one or more other copolymerisable ethylenically unsaturated organic compounds different from (a) and (b).

    87.
    发明专利
    未知

    公开(公告)号:DE59707216D1

    公开(公告)日:2002-06-13

    申请号:DE59707216

    申请日:1997-01-02

    Applicant: BASF AG

    Abstract: The invention concerns radiation-hardenable coatings processed from melt, solution or dispersion and containing as binders copolymers comprising the following: a) at least one monomer of either the general formula (I) CH2 = C(R )-CO-OR , in which R stands for H, CH3 or C2H5 and R stands for H, CnH2n+1, n being 1-30, an alicyclic, araliphatic or heterocyclic group, a hydroxyalkyl-, alkoxyalkyl-, glycidyl- or aminoalkyl group, or of the general formula (II) CH2 = C(R )-CO-NR R , in which R stands for H or CH3, R and R can be identical or different and stand for H, CH2OH, CnH2n+1, n being 1-30, or CH2OR , R standing for CmH2m+1 and m being 1-12; and b) at least one copolymerisable ethylenically unsaturated organic compound of general formula (A), in which R' and R'' can be identical or different and stand for H or CpH2p+1, p being 1-6, cycloalkyl, aryl or aralkyl, and R''' stands for an acryloyl, methacryloyl, ethacryloyl or cinnamyloyl group and this compound can be partially replaced by one or more other copolymerisable ethylenically unsaturated organic compounds different from (a) and (b).

    88.
    发明专利
    未知

    公开(公告)号:AT217337T

    公开(公告)日:2002-05-15

    申请号:AT97900552

    申请日:1997-01-02

    Applicant: BASF AG

    Abstract: The invention concerns radiation-hardenable coatings processed from melt, solution or dispersion and containing as binders copolymers comprising the following: a) at least one monomer of either the general formula (I) CH2 = C(R )-CO-OR , in which R stands for H, CH3 or C2H5 and R stands for H, CnH2n+1, n being 1-30, an alicyclic, araliphatic or heterocyclic group, a hydroxyalkyl-, alkoxyalkyl-, glycidyl- or aminoalkyl group, or of the general formula (II) CH2 = C(R )-CO-NR R , in which R stands for H or CH3, R and R can be identical or different and stand for H, CH2OH, CnH2n+1, n being 1-30, or CH2OR , R standing for CmH2m+1 and m being 1-12; and b) at least one copolymerisable ethylenically unsaturated organic compound of general formula (A), in which R' and R'' can be identical or different and stand for H or CpH2p+1, p being 1-6, cycloalkyl, aryl or aralkyl, and R''' stands for an acryloyl, methacryloyl, ethacryloyl or cinnamyloyl group and this compound can be partially replaced by one or more other copolymerisable ethylenically unsaturated organic compounds different from (a) and (b).

    Curable aqueous polyurethane dispersions

    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

    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.

    90.
    发明专利
    未知

    公开(公告)号:DE10002089A1

    公开(公告)日:2001-07-26

    申请号:DE10002089

    申请日:2000-01-19

    Applicant: BASF AG

    Abstract: A water dispersible, radiation curable polyurethane comprises organic aliphatic or alicyclic polyisocyanates, cycloaliphatic diols and/or cycloaliphatic diamines, compounds having at least one isocyanate reactive group and at least one radically polymerizable unsaturated group and compounds having at least one isocyanate reactive group and at least one dispersion aiding group. A water dispersible, radiation curable polyurethane (I) comprises: (A) organic aliphatic or alicyclic polyisocyanates; (B) cycloaliphatic diols and/or cycloaliphatic diamines; (C) compounds having at least one isocyanate reactive group and at least one radically polymerizable unsaturated group; (D) compounds having at least one isocyanate reactive group and at least one dispersion aiding group; (E) optionally compounds having at least two isocyanate reactive groups having a mol. wt. of less than 1000 g/mol; (F) optionally compounds having at least one isocyanate reactive group that are different to (A)-(D). Independent claims are included for: (i) a polyurethane dispersion (II) comprising the polyurethane (I) and optionally 0-10 wt.% of a photochemical and/or thermal initiator and 0-10 wt.% of a UV absorber and a HALS compound; (ii) a process for the coating of substrates by application of the polyurethane dispersion (II), optionally containing conventional paint additives, onto a substrate and curing by means of electron irradiation or UV light under oxygen, or preferably under inert gas; (iii) the resulting coated substrate.

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