MIT AKTIVER STRAHLUNG HÄRTBARE WASSERBASIERTE HARZZUSAMMENSETZUNG, MIT AKTIVER STRAHLUNG HÄRTBARE BESCHICHTUNGSMASSE, VERFAHREN ZUR BILDUNG EINES GEHÄRTETEN BESCHICHTUNGSFILMS UND GEGENSTAND

摘要

In order to provide an active energy-ray-curable water-based resin composition, which is excellent in storage stability before curing and able to form a cured coating film having an excellent appearance, wear resistance and water resistance, the present invention provides an active energy-ray-curable water-based resin composition comprising: an acrylic resin (A), and a compound (B), wherein the active energy-ray-curable water-based resin composition is obtained by dispersing the compound (B) having 8.6 to 10.5 mmol/g of a polymerizable unsaturated double bond in a resin solution prepared by dissolving or dispersing the acrylic resin (A) in water; the acrylic resin (A) is obtained by using 2 to 15 wt% of a polymerizable monomer represented by the general formula (1) and 55 to 70 wt% of methyl methacrylate; the acrylic resin (A) contains 1.3 to 2.7 mmol/g of a neutralized carboxyl group; and the ratio ((B)/(A)) of the content of the compound (B) to that of the acrylic resin (A) is 1.5 to 6 in terms of weight.
(wherein R 1 is a hydrogen atom or a methyl group; R 2 is an alkylene group having 2 to 8 carbon atoms; and n is an integer of 1 to 10)