Intellectual Property India Publishes Patent Application for Optical Member And Method For Manufacturing Optical Member

MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202617069566 A) filed by Mitsui Chemicals, Inc. on June 03, 2026, for Optical Member And Method For Manufacturing Optical Member.

Inventors include Kasori Yuuki; Kadowaki Shinichiro; and Togo Norihiro.

The application for the patent was published on July 03, 2026, under issue no. 27/2026.

Abstract: Disclosed is an optical member (100) which comprises: a sulfur atom-containing resin base material (11); and a photochromic layer (21) that is superposed on a surface of the sulfur atom-containing resin base material (11). In order to improve adhesion between layers, the maximum point stress measured by the following procedure x is 138 N/mm2 to 177 N/mm2 i...