| 摘要 |
PURPOSE:To prepare microcapsule simply and safely in high yield, by a method wherein core substance comprising substance which can not keep its powdery form at about room temp. is frozen and ground at low temp. and the above mentioned ground core substance is subsequently mixed with a wall substance under stirring at that temp. CONSTITUTION:A core substance (e.g., an acrylate type adhesive) comprising substance which can not keep its powdery form because of liquefaction or agglomeration at about room temp. is ground under freezing at a low temp. not causing melting nor agglomeration of the powder and, at this temp., the above mentioned ground core substance is subsequently mixed with a wall substance (e.g., lauryl alcohol) under stirring and coated with the wall substance. By this method, encapsulation can be performed simply and safely in high yield and a microcapsule generating no deterioration nor modification of the above mentioned substances can be prepared. |
