| 摘要 |
<p>THE INVENTION DETAILED HEREIN COMPRISES A FAMILY OF MULTIFUNCTIONAL ACRYLATE OLIGOMERS WHICH ARE USEFUL AS PIGMENT GRINDING VEHICLES FOR USE IN RADIATION-CURABLE COATING FORMULATIONS. THE MULTIFUNCTIONAL ACRYLATE RESINS ARE FORMED BY THE REACTION OF ACRYLATE MONOMERS AND OLIGOMERS WITHβ-KETO ESTERS (E.G., ACETOACETATES),β-DIKETONES (E.G., 2, 4-PENTANEDIONE),β-KETO AMIDES (E.G., ACETOACETANILIDE, ACETOACETAMIDE), AND/OR OTHERβ- DICARBONYL COMPOUNDS OR MICHAEL "DONORS" THAT CAN PARTICIPATE IN THE MICHAEL ADDITION REACTION. THESE RESIN VEHICLES HAVE A BUILT-IN CHROMOPHORE THAT ENABLES INK FORMULATIONS MADE FROM THEIR DISPERSIONS TO CURE UNDER STANDARD UV -CURE CONDITIONS WITH SIGNIFICANTLY LESS PHOTO INITIATOR THAN COMMERCIAL FORMULATIONS. THE RESINS ALSO EXHIBIT EXCELLENT PIGMENT WETTING CHARACTERISTICS AND CAN BE DESIGNED TO FUNCTION AS A SINGLE DISPERSION VEHICLE FOR DIFFERENT PIGMENTS AND DIFFERENT INK APPLICATIONS SUCH AS SCREEN, FLEXOGRAPHIC, AND LITHOGRAPHIC PRINTING.</p> |
