| 摘要 |
PURPOSE:To produce a microcapsule by effectively promoting an inorg. fine particle being a core substance by a film substance used in encapsulation. CONSTITUTION:An inorg fine particle is added to an org. solvent solution of a copolymer obtained by copolymerizing (meth)acrylic acid and other vinyl type monomer copolymerizable with (meth)acrylic acid to prepare an emulsified dispersion. (Meth)acrylic acid of the copolymer in the dispersion is neutralized and the obtained copolymer neutralized matter is cross-linked to obtain a microcapsule containing the inorg. substance as a core substance and the cross-linked copolymer neutralized matter as a film substance. |
