Expanded starch-based shaped products and the method of preparation thereof
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsPaul A. Altieri, Beth C. Tormey
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Abstract
A biodegradable, structured shaped product having good flexibility or rigidity properties is provided by extruding starch having a relatively large defined particle size and preferably containing a nucleating agent.
Claims29
A structured biodegradable shaped product comprising an expanded, closed cell starch product wherein the product is formed by extruding starch which has a particle size of from about 400 to 1500 microns, the product having a bulk density of from about 2 to 16 lb/ft3, a compressibility of from about 100 to 800 g/cm2 and a resiliency of at least about 20%.
A method of preparing an expanded structured biodegradable shaped product comprising extruding starch which has a particle size of from about 400 to 1500 microns in the presence of a total moisture content of 25% or less by weight and at a temperature of from about 100 to 250° C.
Dependencies are inferred from the claim text.