| 摘要 |
PROBLEM TO BE SOLVED: To obtain an aqueous emulsion of an ultraviolet absorbing resin having excellent compatibility with a synthetic resin, capable of imparting excellent light resistance without deteriorating favorable characteristics of the synthetic resin, improving compounding stability with an aqueous emulsion of the synthetic resin with slight bleedout of the ultraviolet absorbing resin onto a film surface obtained from the emulsion, imparting stable light resistance to the synthetic resin over a long period and imparting excellent alkali and solvent resistance to the synthetic resin having poor alkali and solvent resistances, and an aqueous emulsion resin composition comprising the emulsion of the ultraviolet absorbing resin and an emulsion of other resins. SOLUTION: This aqueous emulsion of the ultraviolet absorbing resin is obtained by carrying out urethanating reaction of (A) a polyester polyol having ultraviolet absorbing groups with (C) a compound containing carboxyl group and an active hydrogen group and (D) an organic polyisocyanate in an organic solvent, neutralizing the resultant resin solution with (E) a neutralizing agent and then dispersing the neutralized solution in water.
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