24.
    发明专利
    未知

    公开(公告)号:ES2049776T3

    公开(公告)日:1994-05-01

    申请号:ES89110249

    申请日:1989-06-07

    Applicant: HOECHST AG

    Abstract: The invention relates to paste resins containing (a) quaternary ammonium groups, (b) OH groups, (c) isocyanate radicals and (d) groups of the formula (I) in which R to R , independently of one another are hydrogen or a hydrocarbon radical having 1 to 10 carbon atoms, and X is hydroxyl or an isocyanate radical, the mean molecular weight (Mn) of these paste resins being from 500 to 10000. The invention furthermore relates to the preparation of these paste resins, to their use for pigment pastes and to these pigment pastes. water-thinable surface coatings, in particular electrodeposition coatings, which contain the pigment pastes according to the invention give defect-free surfaces and comparable coating thicknesses, even on different substrates.

    27.
    发明专利
    未知

    公开(公告)号:DE3726497A1

    公开(公告)日:1989-02-16

    申请号:DE3726497

    申请日:1987-08-08

    Applicant: HOECHST AG

    Abstract: Curable compounds carrying basic nitrogen groups and essentially comprising structural units derived from A) a compound containing on average at least one terminal 2-oxo-1,3-dioxolane group per molecule, with B) a disecondary amine containing hydroxyl groups in the beta -position to the secondary amino groups, it also being possible for this amine to contain blocked primary amino groups, and optionally C) a bifunctional amine containing at least one free primary amino group and optionally at least one secondary amino group, are used, in particular, in surface coating preparations, especially in electrodeposition coating compositions. The coatings obtainable using these compositions have, in particular optimised interlayer adhesion.

    29.
    发明专利
    未知

    公开(公告)号:DE58909740D1

    公开(公告)日:1996-11-07

    申请号:DE58909740

    申请日:1989-07-22

    Applicant: HOECHST AG

    Abstract: The invention relates to paste resins based on epoxide compounds, containing (a) specific quaternary ammonium groups, (b) OH groups and (c) isocyanate radicals bonded to the epoxide compound, of which at least 10 mol% are derived from a long-chain, monofunctional isocyanate having at least 8 carbon atoms, the mean molecular weight (Mn) of these paste resins being 500 to 10000. … In addition, the invention relates to the preparation of these paste resins, to their use for pigment pastes and to these pigment pastes. Water-thinnable paints, in particular electrodeposition paints, which contain the pigment pastes according to the invention give defect-free surfaces and comparable coating thicknesses even on different substrates.

    30.
    发明专利
    未知

    公开(公告)号:AT143678T

    公开(公告)日:1996-10-15

    申请号:AT89113521

    申请日:1989-07-22

    Applicant: HOECHST AG

    Abstract: The invention relates to paste resins based on epoxide compounds, containing (a) specific quaternary ammonium groups, (b) OH groups and (c) isocyanate radicals bonded to the epoxide compound, of which at least 10 mol% are derived from a long-chain, monofunctional isocyanate having at least 8 carbon atoms, the mean molecular weight (Mn) of these paste resins being 500 to 10000. … In addition, the invention relates to the preparation of these paste resins, to their use for pigment pastes and to these pigment pastes. Water-thinnable paints, in particular electrodeposition paints, which contain the pigment pastes according to the invention give defect-free surfaces and comparable coating thicknesses even on different substrates.

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