Claims
- 1. A process for making a cartridge containing fragrant gel, comprising the steps of:
- mixing together at least about fifty percent fragrant agent, at least about fifteen percent gelling agent, and at least about three percent encapsulant;
- heating the mixture to between about 120.degree. F. and to about 160.degree. F. until the mixture becomes a liquid blend;
- transferring the liquid blend to a cartridge housing through an opening in the cartridge housing; and
- covering the cartridge housing opening with an air permeable membrane.
- 2. The process of claim 1, further comprising the step of adding a solvent to the fragrant agent, the gelling agent and the encapsulant before mixing the solvent, fragrant agent, gelling agent and encapsulant.
- 3. The process of claim 1, further comprising the step of covering the cartridge housing opening with a seal.
- 4. The process of claim 3, further comprising the step of allowing the liquid blend to cool before covering the cartridge housing opening with the seal.
- 5. The process of claim 1, wherein the air permeable membrane has an air permeability of about 800 CFM/ft.sup.2 to about 1200 CFM/ft.sup.2 and a density between abut 0.3 oz/yd.sup.2 and 0.9 oz/yd.sup.2, the membrane being positioned above the gel so as to permit the fragrant agent to communicate with an environment external to the cartridge housing opening through the membrane at a release rate between about 0.70 to about 1.30 grams per day.
- 6. The process of claim 1, wherein the air permeable membrane has a density between about 0.5 oz/yd.sup.2 to abut 0.7 oz/yd.sup.2, and a permeability between about 900 CFM/ft.sup.2 to about 1100 CFM/ft.sup.2, wherein the fragrance communicates with the environment at a release rate between about 0.9 grams per day to about 1.10 grams per day over a period of about twenty-five days.
Parent Case Info
This application is a divisional of an application having Ser. No. 08/207,935, filed on Mar. 8, 1994, now abandoned entitled "Extended Release Hot and Cold Gel Fragrance Cartridges and Method of Making the Same".
US Referenced Citations (14)
Divisions (1)
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Number |
Date |
Country |
Parent |
207935 |
Mar 1994 |
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