| abstract |
The present invention provides an aqueous urethane resin composition comprising: a urethane resin having a hydrolyzable alkyl or stanol group, and a polymerizable unsaturated group, and an aqueous amine group of an aqueous medium; And a urethane resin composition containing the alkylene glycol having two or more polymerizable unsaturated groups represented by the formula (1) or the formula (2) A polyol, a polyisocyanate, and a decane coupling agent having an oxygen-extended alkyl diol having two or more polymerizable unsaturated groups are reacted and obtained. The aqueous urethane resin composition can have excellent coating film hardness, elongation, and flexibility, and is excellent in corrosion resistance, temperature resistance, chemical resistance, solvent resistance, and adhesion to various substrates. Coating film.nHO-R1-OH (1)nHO-R1O-R2-OR3-OH (2) |