| abstract |
(57) [Abstract] [Problem] It is excellent in crosslinkability by active energy rays, especially in ultraviolet rays, and there is no problem of coloring and odor in the cured film. Provided is an aqueous composition having excellent hardness and adhesiveness, and also having excellent water resistance and chemical resistance, particularly an aqueous composition suitable for OPV and paint applications. A composition comprising (A) a polymer having a maleimide group and an acidic group and having an acid value of 20 to 400 mgKOH / g or a salt thereof, and (B) a polymer insoluble in an aqueous medium other than the component (A). An active energy ray-crosslinkable aqueous composition in which the component (A) is dissolved or dispersed in the aqueous medium and the component (B) is dispersed in the aqueous medium. |