US Patent Issued to U.S. Silica on Feb. 10 for "Cristobalite as a pigment substitute and as a composition enhancing mineral, compositions containing the same, and articles and coatings prepared with such compositions" (American, Canadian Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,788, issued on Feb. 10, was assigned to U.S. Silica Co. (Katy, Texas).

"Cristobalite as a pigment substitute and as a composition enhancing mineral, compositions containing the same, and articles and coatings prepared with such compositions" was invented by Dale Addison Grove (Hagerstown, Md.), Christopher Anderson (Granville, Ohio), Alain Lambert (Thetford Mines, Canada) and Qun Wang (Reno, Nev.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cristobalite includes: a d50 particle size selected within a range of from 1 micro metre to 15 micro metre; an L color coordinate of greater than 96; a color coordinate of less than 1; and a b color coordinat...