| 摘要 |
This disclosure is directed to an article of manufacture comprising of preformed synthetic water insoluble resins which may be either soluble or insoluble in an organic solvent that is subsequently impregnated with a volatile substance by contact with an aqueous emulsion of an essential oil and a surfactant wherein the impregnated resin article with gradually yield the volatile substance in a chemically unchanged, dry state to the surrounding atmosphere over a considerable period of time. The impregnated volatile substance may be either a fragrance, a flavor, or a combination of both, a sanitizing agent, or a medicinal agent.
|
