RADIATION-CURABLE INKS FOR FLEXOGRAPHIC AND SCREEN-PRINTING APPLICATIONS FROM MULTIFUNCTIONAL ACRYLATE OLIGOMERS

摘要

The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for flexographic and screen printing applications. The inventive ink formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with ß-keto esters (e.g., acetoacetates), ß-diketones (e.g., 2, 4-pentanedione), ß-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other ß-dicarbonyl compounds that can participate in Michael addition reactions.