US Patent Issued to KNAUF GIPS on May 13 for "Gypsum board from gypsum having high level of chloride salt and a polymer layer and methods associated therewith" (Illinois Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,151, issued on May 13, was assigned to KNAUF GIPS KG (Iphofen, Germany).

"Gypsum board from gypsum having high level of chloride salt and a polymer layer and methods associated therewith" was invented by Qinghua Li (Rolling Meadows, Ill.) and Rafael Bury (Wheeling, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Gypsum boards formed from synthetic gypsum and other gypsum sources having high chloride salt concentrations. Gypsum boards may include a board core including set gypsum between a front cover sheet and a back cover sheet. A total concentration of the chloride anion in the board core ranges from about 150 to 4000 parts by weight (pbw) chl...