Corn Products International, Inc.

Cpc International, Inc.

J E Todd Giesfeldt

Joyce A Engels

Wayne Dudacek

Gregory Vital

Jack R Wallace

Larry E Fitt

James J Pienkowski

Physically modified starch products are prepared using pressure and heat such as by extruding starting material starch which optionally can be admixed with gums and/or surfactants. The properties of the products can be adjusted by varying the moisture content of the materials in the extruder and the temperature and pressure at a die plate provided at the discharge end of the extruder. The screw elements in the extruder are selected with the goal of using enough mixing elements at the discharge end to keep the pressure in the extruder barrel as high as possible over a short distance. The physically modified starch products are made up of partially to fully cooked starch and some raw starch particles. They are highly dispersible in cold or hot water with hot or cold swelling viscosity.

Starch products having hot or cold water dispersibility and hot or cold water swelling viscosity

Starch products having hot or cold water dispersibility and hot or cold swelling viscosity

Corrugating adhesives of the carrier, no-carrier and carrier-no-carrier type having excellent dry pin adhesion, green strength and improved water resistance are prepared with solubilized fiber as a complete or partial substitute for starch. The adhesive composition contains solubilized fiber and, optionally, from about 0.1% to about 99% added starch by weight based on total solubilized fiber and added starch. When the adhesive is the carrier type or the carrier-no-carrier type, the fiber, preferably corn fiber, can be solubilized in situ during the process of preparing the carrier phase.

High speed corrugating adhesive incorporating solubilized cellulosic fiber

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LaGrange, IL, United States of America

J E Todd Giesfeldt