PROBLEM TO BE SOLVED: To provide a core-shell structure including a compound having a hydrophilic group and a hydrophobic group in a core portion.SOLUTION: There is provided a core-shell structure including a core portion and a shell portion, wherein the core portion contains a compound having a hydrophilic group and a hydrophobic group and the respective shell portion contains a surfactant having a melting point of 30°C, the surfactant preferably is a sucrose ester. There is provided an S/O type suspension containing a core-shell structure and a substrate layer, wherein the substrate layer contains a core-shell structure.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】親水性基及び疎水性基を有する化合物をコア部に含むコアシェル構造体の提供。【解決手段】コア部及びシェル部を含むコアシェル構造体であって、コア部が、親水性基及び疎水性基を有する化合物を、かつシェル部が、融点30℃以上の界面活性剤をそれぞれ含有するコアシェル構造体。前記界面活性剤がショ糖エステルであることが好ましいコアシェル構造体。コアシェル構造体と、基材相を含有し、特に基材層がコアシェル構造体を含有する、S/O型サスペンション。【選択図】なし
