| abstract |
(57) [Summary] [Object] To provide a cross-linkable aqueous polymer dispersion capable of forming a coating film excellent in weather resistance, stain resistance, solvent resistance, water resistance, adhesion and the like. [Structure] Polysiloxane polymer emulsion (I) In the presence of 0.1 to 90 parts by weight (solid content), 0.1 to 20% by weight of (a) carbonyl group-containing ethylenically unsaturated monomer and (b) component (a) can be copolymerized Monomer mixture (II) consisting of 80-99.9% by weight of ethylenically unsaturated monomer of 99.9-10 parts by weight ((I) + (II) = 1) (00 parts by weight) of the polysiloxane copolymer emulsion (III) obtained by polymerizing the polyfunctional hydrazine derivative (IV) and the equivalent ratio of the carbonyl group to the hydrazino group are 1: 0.1-5. Crosslinked aqueous polymer dispersion containing in the range of, |