| abstract |
(57) [Abstract] [PROBLEMS] To be resistant to low-temperature (20 to 80 ° C.) curing, which can be suitably used as a top coat agent for decorative papers or resin decorative sheets particularly used for decorative boards and wallpapers. Provided is a coating agent which forms a coating film excellent in abrasion resistance, scratch resistance, stain resistance, water resistance and the like. An aqueous polyurethane resin dispersion containing a polyurethane resin having a dimethylpolysiloxane segment-containing group at the molecular end and an ionic group at the molecular side chain; and the aqueous dispersion and a crosslinking agent component. Co- Ting agent. |