| abstract |
(57) [Abstract] [Object] To provide an aqueous dispersion excellent in adhesion, transparency, water resistance, coating film strength, hydrophilicity, antifogging property, durability and the like. [Constitution] The aqueous dispersion comprises (a) N-alkyl (meth) 2 to 50% by weight of acrylamide, (b) 0.1 to 20% by weight of an ethylenically unsaturated monomer having a carbonyl group based on an ald group or a keto group, and (c) another copolymerizable ethylenically unsaturated monomer. Monomer mixture consisting of 30 to 97.9% by weight (where (a) + (b) + (c) = 1 Polymer particles (A) obtained by polymerizing A polyfunctional hydrazine derivative (B) having at least two hydrazino groups in the molecule is contained in an equivalent ratio of carbonyl group to hydrazino group in the range of 1: 0.1 to 5. |