US Patent Issued to MITSUI CHEMICALS on Jan. 27 for "Method of producing thiourethane resin raw material and application thereof, method of producing polythiol composition and application thereof, and polythiol composition" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,431, issued on Jan. 27, was assigned to MITSUI CHEMICALS INC. (Tokyo).

"Method of producing thiourethane resin raw material and application thereof, method of producing polythiol composition and application thereof, and polythiol composition" was invented by Masakazu Murakami (Omuta, Japan), Shotaro Nakano (Omuta, Japan) and Shinnosuke Nakai (Omuta, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of producing a thiourethane resin raw material, the method including comprising the step of generating the thiourethane resin raw material by reacting a thiourethane resin and an active hydrogen compound with each other."

The patent was filed...