ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,577, issued on March 18, was assigned to SEKISUI CHEMICAL Co. Ltd. (Osaka, Japan).
"Chlorinated vinyl chloride resin" was invented by Ryota Yamasugi (Yamaguchi, Japan), Mitsuo Matsumoto (Yamaguchi, Japan), Nami Nakajima (Osaka, Japan) and Yasunari Kusaka (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a chlorinated polyvinyl chloride resin that enables the production of a molded article that maintains high adhesion strength even when used in a form subjected to high pressure and is less susceptible to defects such as cracks due to insufficient strength, as well as a resin composition for molding and a mol...