Powders providing controlled sustained release of a gas
AssigneeBernard Technologies, Inc.
InventorsSumner A. Barenberg, Peter N. Gray, Michael Lelah
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Abstract
A powder for sustained release of a gas including a core containing a molecular sieve, and a layer containing an acid releasing agent on an outer surface of the core. The core and the layer are substantially free of water, and the core is capable of generating and releasing a gas after hydrolysis of the acid releasing agent.
Claims36
A powder for sustained release of a gas comprising:
- a core containing a molecular sieve and anions that are capable of reacting to generate a gas;
- and
- a layer containing an acid releasing agent on an outer surface of the core;
- the core and the layer being substantially free of water, and the core being capable of generating and releasing a gas after hydrolysis of the acid releasing agent.
A process for preparing a powder providing sustained release of a gas, the process comprising admixing molecular sieve particles containing anions with an acid releasing agent to form a product, and fragmenting the product to form a powder, the powder comprising a core containing a molecular sieve and anions that are capable of reacting to generate a gas, and a layer containing an acid releasing agent on an outer surface of the core, the core and the layer being substantially free of water and the core being capable of generating and releasing the gas after hydrolysis of the acid releasing agent.
Dependencies are inferred from the claim text.