Abstract: Biodegradable and/or compostable compositions of blends of bio-based starch mixed esters and biodegradable and/or compostable polymers and methods of making them are described. The blend may include from about 20% to about 90% of the described starch mixed esters and from about 10% to about 80% of at least one other biodegradable and/or compostable polymer other than the bio-based starch mixed ester.

Abstract: A bio-based starch mixed ester biodegradable and/or compostable composition includes a mixed starch mixed ester having a total degree of substitution of at least 1.0, wherein the ester substituents include a mixture of (a) acetate and (b) one or more C10 to C24 ester residues, wherein the degree of substitution of (a) is greater than (b). A method of preparing a bio-based starch mixed ester biodegradable and/or compostable composition having a degree of substation of at least 1.0 includes reacting starch with a mixed acid anhydride in the presence of an esterification catalyst to form a starch mixed ester composition wherein the mixed acid anhydride is formed from (a) an acid anhydride and (b) a carboxylic acid having 10 to 24 carbon atoms.

Abstract: Articles of manufacture formed from starch ester biodegradable and/or compostable compositions and blends of starch ester biodegradable and/or compostable compositions with biodegradable and/or compostable polymer compositions. The articles of manufacture may include but are not limited to inks, paints, compost bag, laminate bags, agricultural films, binder for earthenware, landscape piles or spikes, bottles, strands, sheets, films, packaging materials, pipes, tubes, lids, cups, rods, laminated films, sacks, bags, cutlery, pharmaceutical capsules, foams, granulates and powders.

Abstract: The present disclosure provides a method for producing cornstarch, which can efficiently produce cornstarch by using grain dust as a raw material and can suppress wear of equipment.

Abstract: Process for manufacturing modified starch. A powdery starch composition raw material, containing a specified amount of a phosphate with respect to a raw material starch on a dry basis, is subject to esterification modification by performing a first step of heat treating by raising a temperature gradually and performing, in continuation, a second step of heat treating at a constant temperature. A temperature rise starting temperature of the first step is set within a range from an ordinary temperature to a temperature no more than a gelatinization starting temperature of the raw material starch, a temperature rise rate is set to 0.2 to 1° C./min, and a temperature rise final temperature is set to 120 to 180° C. The constant temperature treatment is normally performed at the temperature rise final temperature.