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US 11,377,293 B2Granted
Adsorbent matrix as propellant in aerosol package
AssigneeThe Procter & Gamble Company
InventorDimitris Ioannis Collias
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Abstract
Adsorbent materials adsorb large quantities of inert permanent gases and maintain the initial pressure inside aerosol packages throughout the useful life of the packages, thus acting as propellants.
Claims6
A method for generating constant pressure inside an aerosol package comprising the use of an adsorbent material and an inert permanent gas;
- wherein said inert permanent gas is adsorbed into said adsorbent material to form an adsorbent matrix;
- wherein said adsorbent matrix has an uptake constant K greater than about 0.015 g/g·psig at about 100 psig;
- wherein said adsorbent matrix generates a pressure inside said aerosol package;
- and wherein said pressure remains constant throughout the useful life of said aerosol package.
1 more element
Dependencies are inferred from the claim text.