| abstract |
(a) aus Gelbildnem, Chitosanen und Wirkstoffen eine Matrix zubereitet und (b) diese in wäßrige Lösungen anionischer Polymere eintropft. Microcapsules with average diameters in the range from 0.1 to 5 mm, consisting of an enveloping membrane and a matrix containing at least one active ingredient, are proposed in that (a) a matrix is prepared from gel formers, chitosans and active ingredients and (b) drips them into aqueous solutions of anionic polymers. |