| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for preparing an aqueous coating resin composition which shows a sufficient weather resistance and an excellent gloss. SOLUTION: In an aqueous medium, a (meth)acrylic monomer is subjected to a first emulsion polymerization. After reaching a conversion ratio of 70%, a pre-emulsion prepared by pre-emulsifying a polymerizable, UV-stable monomer and/or a polymerizable, light-stable monomer, preferably a pre-emulsion prepared by pre-emulsifying these with the (meth)acrylate monomer, is added to perform a second emulsion polymerization. COPYRIGHT: (C)2004,JPO
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