ACTINIC-ENERGY-RAY-CURABLE WATER-BASED RESIN COMPOSITION, ACTINIC-ENERGY-RAY-CURABLE COATING MATERIAL, METHOD OF FORMING CURED COATING FILM, AND ARTICLE

摘要

An actinic-energy-ray-curable water-based resin composition which gives a cured coating film having a satisfactory appearance and excellent in wearing resistance and water resistance and which has excellent storage stability before curing. The actinic-energy-ray-curable water-based resin composition is obtained by dissolving or dispersing in water an acrylic resin (A) which is obtained from monomers including 2-15 wt.% polymerizable monomer represented by the following general formula (1) and 55-70 wt.% methyl methacrylate and which contains neutralized carboxy groups in an amount of 1.3-2.7 mmol/g and dispersing a compound (B) having a polymerizable unsaturated double bond in an amount of 8.6-10.5 mmol/g in the resultant resin solution, the ratio of the content of the compound (B) to that of the acrylic resin (A), (B)/(A), being 1.5-6 in terms of ratio by weight. (R1 is hydrogen or methyl; R2 is C2-8 alkylene; and n is an integer of 1-10). ® KIPO & WIPO 2009