| 摘要 |
The invention relates to aqueous dispersions, which can be hardened thermally and by using actinic radiation, containing: (I) liquid, highly viscous and/or solid particles that are dimensionally stable under storage and application conditions. Said particles contain: (IA) a binding agent that does not contain any carbon-carbon double bonds, which can be activated with actinic radiation, containing at least one (meth)acrylate copolymer having, in the statistical mean, at least one isocyanate-reactive functional group and at least one dispersed functional group per molecule, and; (IB) at least one blocked polyisocyanate. The aqueous dispersions also contain: (II) liquid, highly viscous and/or solid particles, which are dimensionally stable under storage and application conditions. Said particles contain at least one polyurethane (II) having at least one isocyanate-reactive functional group, at least one functional group with at least one bond that can be activated with actinic radiation, and at least one dispersing functional group. Lastly, the aqueous dispersions contain: (III) at least one unsaturated constituent, which does not contain any isocyanate-reactive functional groups and which, in the statistical mean, contains more than one carbon-carbon double bond per molecule, which can be activated with actinic radiation. The invention also relates to a method for producing the aqueous dispersions and to the use thereof.
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