US Patent Issued to MITSUI CHEMICALS on Aug. 5 for "Method for setting polymerization condition and method for manufacturing optical material" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,367, issued on Aug. 5, was assigned to MITSUI CHEMICALS INC. (Tokyo).

"Method for setting polymerization condition and method for manufacturing optical material" was invented by Masayuki Furuya (Arao, Japan) and Takeshi Nishimura (Yanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The method for setting polymerization conditions includes a physical property acquiring step, in which, when a composition which includes a polymerizable reactive compound including an episulfide compound, and a polymerization catalyst is heated and maintained at a predetermined temperature, a physical property value a derived from a functional group of the poly...