| 摘要 |
PROBLEM TO BE SOLVED: To stably obtain a capsule with a uniform particle diameter which can release aroma of a hydrophobic oil sealed therein by providing a core body formed of a hydrophobia oil-contg. polymer and a shell covering this core body and formed of a cured substance of a curable polymer. SOLUTION: A slow release capsule has a core body and a shell covering this core body and the core body is prepd. by polymerizing a reactive monomer in a compsn. for forming the core body contg. a hydrophobic oil and the reactive monomer. As this reactive monomer, acrylic acids, methacrylic acids, etc., are used. In addition, the shell is at least one covering layer formed of a cured body of a curable polymer covering the surface of the core body. Namely, the shell is prepd. by curing the curable polymer in a water soln. contg. a natural curable polymer and/or a synthetic curable polymer and as the curable polymers, a cooling-curable polymer which is cured by cooling and/or a salt- curable polymer which is cured with salt are used. |
