PROBLEM TO BE SOLVED: To provide an oil-in-water emulsion composition which contains a polymer emulsifier, of which the average particle size of oil drops is very small and also which is good in stability.SOLUTION: The oil-in-water emulsion composition is obtained by bringing a system formed by mixing the polymer emulsifier (A) containing a nonionic hydrophilic configuration unit (a) and a hydrophobic configuration unit (b), an oil-based composition (B) and water (C), into a solubilized state, then cooling the system to a temperature of 40°C or lower.COPYRIGHT: (C)2008,JPO&INPIT【課題】 高分子乳化剤を含有し、油滴の平均粒径が微細であり、なおかつ安定性が良好な水中油型乳化組成物の提供。【解決手段】 非イオン性親水性構成単位(a)、及び疎水性構成単位(b)を含む高分子乳化剤(A)、油性成分(B)、及び水(C)を混合した系を、可溶化状態にした後、40℃以下に冷却して得られる水中油型乳化組成物の提供。【選択図】 なし
