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US 8,524,808 B2Granted
Radiation curable compositions
AssigneeIgm Group B.V.
InventorsRainer Hoefer, Laurence Druene, Jean-Marc Ballin, Morgan Garinet
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Abstract
The invention is a radiation curable coating composition containing epoxyacrylate formed by ring opening reaction between (meth)acrylic acid and a self-dispersing epoxy resin in an aqueous system.
Claims13
A radiation-curable, water-based, coating composition comprising:
- epoxyacrylates obtained by:
- reacting, in an aqueous system at 20° C.,
- (A) a self-dispersing epoxy resin containing polyalkylene oxide units with (B) an acrylic and/or methacrylic acid to form an epoxyacrylate;
- and
- dispersing the epoxyacrylate in an aqueous system, with the proviso that the reaction between components (A) and (B) is conducted in such a way that the epoxide groups present in component (A) are ring-opened predominantly by the carboxyl functional groups present in component (B).
2 more elements
Dependencies are inferred from the claim text.