| 摘要 |
PURPOSE:To simplify the manufacturing process of a microcapsule contg. a hydrophobic core substance, and to obtain the microcapsule of high quality by using natural and/or synthetic clay minerals having a gelling function as an emulsifying and dispersing agent of the hydrophobic core substance. CONSTITUTION:The natural or synthetic clay substance such as a mont-morillonite group clay substance having a gelling function are used as an emulsifying and dispersing agent of a hydrophobic core substance in the manufacture of a microcapsule by polymerizing a film-forming monomer on the surface of the hydrophobic substance which is dispersed in a hydrophilic dispersion medium. The mixing ratio of the hydrophilic substance contg. clay minerals to the hydrophobic core substance contg. the monomer is regulated preferably to from 1:2 to 50:1 weight ratio. In addition, the mixing ratio of the hydrophobic core substance to the monomer is regulated to from 1:1 to 19:1. The water content of the hydrophilic dispersion medium to contain the clay minerals is regulated to about >=60wt%. In this way, the microcapsule of high quality can be manufactured with the simple method. |
