| 摘要 |
PURPOSE:To produce an aqueous resin dispersion having excellent machine applicability and paint workability, a large particle diameter and a narrow particle diameter distribution, by emulsion-polymerizing an alpha,beta-ethylenically unsaturated monomer with a specified aqueous resin dispersion. CONSTITUTION:An aqueous resin dispersion is obtained by emulsion-polymerizing 1-10wt% water-soluble alpha,beta-ethylenically unsaturated monomer [e.g., (meth) acrylic acid], 0.1-5wt% polyvinyl compound and/or polyallyl compound (e.g., divinylbenzene), 0.1-3wt% sulfonic acid substituent-containing alpha,beta-ethylenically unsaturated monomer (e.g., vinylbenzenesulfonic acid) and 82-98.8wt% other copolymerizable alpha,beta-ethylenically unsaturated monomer [e.g., methyl (meth) acrylate] in the presence of a radical-generating catalyst to a monomer conversion >=60wt%. 100pts.wt. alpha,beta-ethylenically unsaturated monomer is emulsion- polymerized with 0.2-30pts.wt. (in terms of solids) above resin dispersion. |
