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US 11,884,476 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
An aerosol package comprising a bag, a can, and a valve;
- wherein the volume between said bag filled with product and said can is a propellant volume;
- wherein said propellant volume comprises an MOF and carbon dioxide;
- wherein said carbon dioxide is partly adsorbed in said MOF, forming an adsorption matrix with uptake constant K greater than about 0.015 g/g.psig at about 100 psig, and the remainder of said carbon dioxide is in equilibrium with said adsorbed carbon dioxide at a pressure;
- and wherein said pressure remains constant throughout the useful life of said aerosol package.
1 more element
Dependencies are inferred from the claim text.