| 摘要 |
<P>PROBLEM TO BE SOLVED: To use a polyurethane composite resin aqueous dispersion composed of a polyurethane resin aqueous dispersion and a specific modified polyvinyl chloride resin aqueous dispersion, and provide chemical resistance, mechanical strength and further viscoelastic characteristics by improving the compatibility of a polyvinyl chloride resin and a polyurethane resin without using an organic solvent in applications such as coating materials, coating agents, sealing agents, adhesives, artificial leathers, hoses and vibratioproof materials. <P>SOLUTION: An aqueous composite resin composition is obtained by mixing an aqueous dispersion (A) of a polyurethane resin particle and an aqueous dispersion (B) of a modified polyvinyl chloride resin particle, wherein (A)/(B) is in the range of >50/50 and ≤95/5 in weight ratio in terms of resin solid content; and the aqueous dispersion (B) of a modified polyvinyl chloride resin particle is obtained by copolymerizing a monomer (b1) containing a hydroxyl group and a vinyl group, and a vinyl chloride monomer (b2), and (b1)/(b2) is in the range of 2/98 to 20/80 in weight ratio. <P>COPYRIGHT: (C)2012,JPO&INPIT |
