| 摘要 |
A process for the production of CS particles ( 10 ) and microcapsules ( 12 ) is described, in which at least one active compound ( 4 ) is adsorbed in porous templates ( 2 ) (A), as a result of which templates ( 5 ) filled with active compounds are present. Subsequently, the templates ( 2 ) are provided (B) with a primer layer ( 6 ) which is intended to facilitate the subsequent construction of the capsule shell ( 9 ). The capsule shell is formed (C) by applying alternately charged polyelectrolyte layers ( 8 ). Filled CS particles ( 10 ) are obtained. By subsequent dissolution of the templates ( 2 ) the active compounds ( 4 ) are released (D) from the template into the interior of the microcapsules. The active compounds ( 4 ) remain enclosed there or are slowly released (E) from the capsule.
|
