Abstract:
The problem to be solved by the present invention is to provide an oil-in-water-type emulsion composition having an excellent sensation, particularly an excellent fresh sensation, upon use. An oil-in-water-type emulsion composition including oily phases and an aqueous phase having the oily phases dispersed therein, said emulsion composition being characterized in that a dispersant for dispersing the oily phases in the aqueous phase comprises: a core-corona-type microgel composed of hydrophobic gel microparticles and hydrophilic groups provided on parts of the surfaces of the hydrophobic gel microparticles; and an aqueous phase containing an agar microgel having an average particle diameter of 10 to 100 μm.
Abstract:
The present invention provides a corona-core microgel emulsifying agent composed of a copolymer obtained by polymerizing polyethylene oxide macromonomers, hydrophobic monomers, and cross-linking monomers under specific conditions as well as an oil-in-water emulsified composition characteristically using said emulsifying agent for emulsification.The object of the present invention is to provide a new corona-core microgel emulsifying agent to be used to prepare an oil-in-water emulsified composition that manifests superior emulsification stability, stability over time, and low skin irritation, and is free of stickiness at the time of application, manifests dewy freshness, is free of powdery sensation and/or squeakiness, and is superior in durability of fragrance, as well as an oil-in-water emulsified composition emulsified with said emulsifying agent.