Regenerated carbohydrate foam composition
OwnerWilliam G. Reeves, Li-fu Cheninventors
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Abstract
The present invention provides a carbohydrate foam composition. The foam composition is highly wettable, resilient and has a uniform pore structure suitable for use in products such as absorbent personal products, health care products, and products suitable for fluid distribution and transfer. The foam of the present invention may also be made into sheets suitable for products such as tissue and paper towels. In one embodiment the foam is made from a carbohydrate and zinc chloride. In a further embodiment the carbohydrate is cellulose, and in a further embodiment the carbohydrate is chitin.
Claims29
A carbohydrate foam comprising:
- (a) a matrix comprising a regenerated carbohydrate material produced from an aqueous carbohydrate composition comprising a water-insoluble carbohydrate, wherein the carbohydrate is at least partially dissolved in an aqueous solution capable of at least partially dissolving the carbohydrate;
- and
- (b) a plurality of pores dispersed within the matrix, wherein the pores are produced by introduction of a gas into the aqueous carbohydrate composition prior to regeneration.
The absorbent product of claim 63, wherein the product is selected from diapers, sanitary napkins, sponges, bandages, facial tissue, or paper towels.
Dependencies are inferred from the claim text.