| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain an aqueous dispersion liquid of a urethane-(meth)acrylate composite resin, which liquid can allow artificial leather obtained therefrom to have satisfactory strength and bending properties and excellent hydrolyzing resistance. <P>SOLUTION: The urethane-(meth)acrylate composite resin is obtained by adding at least two emulsified liquids, which are raw materials, in each of which one or a plurality of (meth)acrylate monomers are dispersed beforehand and which have the compositions different from each other, to a reaction vessel successively or continuously in the presence of an aqueous medium in such a manner that one emulsified liquid is added first and the other emulsified liquid is added thereafter. A foamable resin composition is obtained by incorporating a foaming agent and a foam stabilizer in the urethane-(meth)acrylate composite resin. <P>COPYRIGHT: (C)2013,JPO&INPIT |
