| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aqueous polyurethane resin material which is excellent in the water solubility of a coating film and in resolubility in water, because of enhancing the specificity and usability of coating materials, ink materials and the like, and has characteristics such as organic solvent resistance. <P>SOLUTION: The aqueous polyurethane resin dispersion composition is obtained by reacting an organic polyisocyanate (A), a polymer polyol (B) and a low molecular glycol (C) containing a carboxyl group to produce a urethane prepolymer, emulsifying and dispersing the urethane prepolymer by a neutralization treatment using a neutralizing agent (D) and a mixing treatment with water, and then reacting the product with an amino sulfonic acid (E). <P>COPYRIGHT: (C)2013,JPO&INPIT |
