Biodegradable expanded starch products and the method of preparation.

摘要

A biodegradable expanded starch product having low bulk density of less than 0.45 lb/ft<3> and low dustiness of less than 1.0% at 10% relative humidity and 23 DEG C comprising: a) modified starch having an amylose content of about 10 to 30% by weight and modified with about 2 to 6% by weight of bound alkylene oxide having 2 to 4 carbon atoms, and b) from about 8 to 15% by weight of hydrolyzed polyvinyl alcohol based on the weight of starch and having a degree of hydrolysis of from about 88 to 99%.