申请人:Miyabayashi Toshiyuki
公开号:US20080039550A1
公开(公告)日:2008-02-14
The present invention provides a method for producing an encapsulated product in which a core substance having an electric charge on its surface is coated with a wall material comprising a polymer as a main component, the production method comprising at least the following steps (1) to (4): (1) a step of adding an ionic polymerizable surfactant A containing an ionic group having the opposite electric charge to the electric charge on the surface of the core substance, a hydrophobic group and a polymerizable group to an aqueous solvent containing the core substance, followed by mixing, thereby adsorbing the ionic polymerizable surfactant A to the surface of the core substance; (2) a step of adding, after said step (1), an ionic polymerizable surfactant B containing an ionic group having the same or opposite electric charge to the electric charge on the surface of the core substance, a hydrophobic group and a polymerizable group, followed by mixing; (3) a step of adding, after said step (2), a hydrophobic monomer and an oil-soluble polymerization initiator, followed by mixing; and (4) a step of polymerizing the ionic polymerizable surfactant A, the ionic polymerizable surfactant B and the hydrophobic monomer to form the polymer. Also, an encapsulated product obtained by this production method is disclosed.