DUAL-CURE LATEX COMPOSITIONS

摘要

Radiation-curable latex compositions having a secondary curing mechanis m are disclosed. In these compositions, an anionically stabilized, water-borne dispersion of one or more radiation-curable resins is combined with a low molecular weight compound having at least two reactive functional groups, wherein one reactive functional group comprises an epoxy and the other reactive functional group comprises either an epoxy or a functionality capable of sel f- condensation after film formation. Also disclosed is a method for providing a cross- linked protective coating on a substrate, wherein a coating of the compositi on of the present invention is applied to the substrate, the coated substrate is expos ed to actinic radiation to effect curing, and then the unexposed or underexposed portions of the coated substrate are allowed to cure at room temperature or greater.< /SDOAB>