| abstract |
PROBLEM TO BE SOLVED: To provide a room-temperature-curable resin composition comprising an aqueous polyurethane-vinyl polymer composite excellent in mechanical stability and durability, and a coating agent or ink using the same. I will provide a. SOLUTION: Polyhydroxy compound containing one or more carboxyl groups and two or more hydroxyl groups (component A), polyhydroxy compound containing two or more hydroxyl groups (component B), two or more isocyanate groups And a chain extension of a polyol-isocyanate polyaddition reaction product comprising a polyisocyanate compound (component (C)) and a hydroxy compound (D) having a polymerizable unsaturated group, and having a -CONHNH 2 group at a terminal. It is composed of a polyurethane-copolymer composite obtained by copolymerizing the introduced polyurethane resin with a mixture containing an unsaturated monomer containing a ketone group or an aldehyde group and an unsaturated monomer containing an epoxy group, and water. |