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    • 4. 发明授权
    • Multifunctional acrylate oligomers as pigment grinding vehicles for radiation-curable ink applications
    • 多功能丙烯酸酯低聚物作为可辐射固化油墨应用的颜料研磨载体
    • US07252709B2
    • 2007-08-07
    • US10682875
    • 2003-10-14
    • Sridevi Narayan-SarathyLisa M. HahnMichael Gould
    • Sridevi Narayan-SarathyLisa M. HahnMichael Gould
    • C09D11/00C08L33/00
    • C08F222/1006C08G61/12C09D7/45C09D11/101C09D17/00C09D165/00
    • 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 with β-keto esters (e.g., acetoacetates), β-diketones (e.g., 2,4-pentanedione), β-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other β-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 photoinitiator 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.
    • 本文详述的本发明包括可用作可辐射固化涂料制剂中的颜料研磨载体的多官能丙烯酸酯低聚物族。 多官能丙烯酸酯树脂通过丙烯酸酯单体和低聚物与β-酮酯(例如乙酰乙酸酯),β-二酮(例如2,4-戊二酮),β-酮酰胺(例如乙酰乙酰苯胺,乙酰乙酰胺), 和/或可以参与迈克尔加成反应的其它β-二羰基化合物或迈克尔“供体”。 这些树脂载体具有内置的发色团,其使得由它们的分散体制成的油墨配方在标准UV固化条件下固化,而光致引发剂比商业制剂显着减少。 这些树脂还表现出优异的颜料润湿特性,并且可以设计成用作不同颜料和不同油墨应用如丝网印刷,苯胺印刷和平版印刷的单一分散载体。