Radiation-curable lithographic inks from multifunctional...

C - Chemistry – Metallurgy – 08 – K

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C08K 3/28 (2006.01) C08F 2/46 (2006.01)

Patent

CA 2564622

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

La présente invention se rapporte de manière générale à des formulations d'encres pouvant être séchées par exposition à un rayonnement, et plus particulièrement, mais pas exclusivement, à une famille de formulations d'encres pouvant être séchées par exposition à un rayonnement et destinées spécifiquement à des applications d'impression lithographique. Ces formulations d'encres de l'invention sont basées sur des résines acrylates multifonctionnelles formées par réaction de monomères acrylates et d'oligomères avec des .beta.-céto-esters (par exemple, acétoacétates), des .beta.-dicétones (par exemple, 2, 4-pentanedione), des .beta.-céto amides (par exemple, acétoacétanilide, acétoacétamide), et/ou d'autres composés .beta.-dicarbonyle qui peuvent participer à des réactions d'addition de Michael

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