Dual-cure latex compositions
First Claim
1. A radiation-cured latex composition having a secondary curing mechanism, comprising:
- an anionically stabilized, water-borne dispersion of one or more radiation-curable resins; and
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, which is cured via self-condensation after film formation.
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Abstract
Radiation-curable latex compositions having a secondary curing mechanism 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 self-condensation after film formation. Also disclosed is a method for providing a cross-linked protective coating on a substrate, wherein a coating of the composition of the present invention is applied to the substrate, the coated substrate is exposed 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.
51 Citations
10 Claims
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1. A radiation-cured latex composition having a secondary curing mechanism, comprising:
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an anionically stabilized, water-borne dispersion of one or more radiation-curable resins; and 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, which is cured via self-condensation after film formation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A method for providing a secondary curing mechanism to a radiation-cured latex composition, comprising the addition of 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, which is cured via self-condensation after film formation.
Specification