US Patent Issued to MITSUI CHEMICALS on Oct. 21 for "Polymerizable composition for optical material, molded product, optical material, and plastic lens and method for manufacturing same" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,470, issued on Oct. 21, was assigned to MITSUI CHEMICALS INC. (Tokyo).

"Polymerizable composition for optical material, molded product, optical material, and plastic lens and method for manufacturing same" was invented by Tatsuya Ogawa (Omuta, Japan) and Masayuki Furuya (Arao, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polymerizable composition for an optical material includes: an allyl carbonate compound (A) including two or more allyloxycarbonyl groups at a terminal which is represented by General Formula (1); and a radical polymerization initiator (B). The radical polymerization initiator (B) includes at least one kind of radical poly...