| abstract |
A kind of compositions, it comprises is wherein the water-soluble polymer matrix of dispersed oil droplets, and described compositions comprises active component.The present invention includes wherein active component and be incorporated to embodiment in the little oil droplet of at least some and its medium and small oil droplet containing the embodiment of active component.Little oil droplet discharges along with the stromatolysis comprising it in aqueous medium.In one embodiment, little oil droplet is substantially fixed in substrate or by substrate and fixes, and this fixed structure is lost along with stromatolysis in aqueous medium.In certain embodiments, oil droplet can be referred to as the oil phase of the present composition.Described product can be microballon form.Described oil phase and/or described polymeric matrix can comprise surfactant separately. |