| abstract |
PROBLEM TO BE SOLVED: To provide an aqueous resin dispersion which gives a coating film having high adhesion to various plastics such as PMMA and PET. An aqueous resin dispersion composition comprising at least a polyurethane resin (A), a compound (B) having a polymerizable unsaturated bond, and colloidal silica (C) dispersed in an aqueous medium. The aqueous resin dispersion is characterized in that the colloidal silica (C) is 15 to 40% by weight in the total weight of (A), (B) and (C), and the aqueous resin dispersion is contained. A curable composition, a coating composition, and a coating agent composition. The concentration of the polymerizable unsaturated bond is preferably 2.7 to 6.0 mmol / g. The particle size of colloidal silica is preferably 18 to 50 nm. [Selection figure] None |