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US 4,944,734 AGranted
Biodegradable incontinence device with embedded granules
AssigneeMicro Vesicular Systems, Inc.
InventorDonald F. H. Wallach
Life of this patent
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Abstract
The present invention concerns a biodegradable incontinence device such as a diaper. The incontinence device has biodegradability enhancer granules containing an enzyme such as cellulase or hemicellulase embedded therein. The outer layers of the device are preferably made of a biodegradable material such as treated paper or rayon.
Claims20
An incontinence device having improved biodegradability comprising:
- an inner layer which is substantially porous to allow the transfer of an aqueous solution into said device, said inner layer being made of a material which is substantially nonwettable;
- one or more absorptive layers formed primarily of a cellulosic material, said cellulosic material having biodegradability enhancer granules embedded therein, said enhancer granules containing of a particulate material which degrades over time encapsulating a biodegradability enhancer agent selected from the group consisting of cellulase, hemicellulase or related cellulose degrading enzymes, and bacteria or spores which release cellulase, hemicellulase or related cellulose degrading enzymes;
- and
- an outer layer which is substantially impermeable to water.
1 more element
Dependencies are inferred from the claim text.