Aqueous dispersions curable thermally and with actinic radiation, comprising
(I) liquid, and/or highly viscous solid particles dimensionally stable under storage and application conditions, comprising
(IA) a binder free of carbon-carbon double bonds activatable with actinic radiation, comprising at least one (meth)acrylate copolymer containing on average per molecule at least one isocyanate-reactive functional group and at least one dispersive functional group, and
(IB) at least one blocked polyisocyanate;
(II) liquid, highly viscous and/or solid particles dimensionally stable under storage and application conditions, comprising at least one polyurethane (II) containing at least one isocyanate-reactive functional group, at least one functional group having at least one bond activatable with actinic radiation, and at least one dispersive functional group, and
(III) at least one unsaturated constituent which is free of isocyanate-reactive functional groups and contains on average per molecule more than one carbon-carbon double bond activatable with actinic radiation;
processes for preparing them, and their use.
可通过热固化和光辐射固化的
水性分散体,包括
(I) 在储存和应用条件下尺寸稳定的液体和/或高粘度固体颗粒,包括
(IA) 不含碳碳双键的粘合剂,可通过辐射活化,包括至少一种(甲基)
丙烯酸酯共聚物,平均每个分子含有至少一个
异氰酸酯反应性官能团和至少一个分散性官能团,以及
(IB) 至少一种封端多
异氰酸酯;
(II) 在储存和应用条件下尺寸稳定的液态、高粘度和/或固态颗粒,包括至少一种聚
氨酯 (II),其中含有至少一个
异氰酸酯反应官能团、至少一个具有至少一个可被放 射线激活的键的官能团和至少一个分散官能团,以及
(III) 至少一种不饱和成分,不含
异氰酸酯反应官能团,且平均每分子含有一个以上可被放 射线激活的碳碳双键;
制备工艺及其用途。