US Patent Issued to United States Gypsum on July 29 for "Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto" (Illinois, Iowa Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,374, issued on July 29, was assigned to United States Gypsum Co. (Chicago).

"Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto" was invented by Yijun Sang (Oak Park, Ill.) and Brian J. Christ (Burlington, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Bra...