HYDROXYETHYL STARCH COMPOSITION

摘要

A blended hydroxyethyl starch composition including dent corn starch and waxy corn starch is disclosed. The starch composition includes both amylose polymers and amylopectin polymers combined in a manner to produce a superior composition suitable for use as a surface sizing agent during the manufacture of paper products. Methods of manufacture of the composition are disclosed, including hydroxyethylation of the blended starch composition before blending the dent corn starch and waxy corn starch, as well as hydroxyethylation of the dent corn starch prior to blending with the wax corn starch. The starch composition is also suitable for incorporation in various coating compositions in addition to use as a sizing agent, such as use as a pigmented paint.