US Patent Issued to TOCALO on July 29 for "Method for forming silica-based multilayer coating on substrate from polysilazane-containing compostions" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,793, issued on July 29, was assigned to TOCALO Co. LTD. (Hyogo, Japan).

"Method for forming silica-based multilayer coating on substrate from polysilazane-containing compostions" was invented by Takaomi Tanabe (Hyogo, Japan), Seiichiro Kawachi (Hyogo, Japan) and Kosaku Hiyama (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for forming a coating, which includes: a first step of applying a first solution containing a polysilazane to a surface of a metal substrate, heating the first solution to make the first solution undergo conversion into silica and form a first coating having open defects, on the surface of the metal substrate...