The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 16, 2023
Filed:
Aug. 03, 2017
Tokuyama Corporation, Shunan, JP;
Shinobu Izumi, Shunan, JP;
Ayako Ohara, Shunan, JP;
Yasutomo Shimizu, Shunan, JP;
Junji Momoda, Shunan, JP;
Tokuyama Corporation, Shunan, JP;
Abstract
Provided is a photochromic curable composition which forms a cured body that develops excellent photochromic properties. The photochromic curable composition (A) includes: a polyrotaxane monomer wherein, in a polyrotaxane compound having a composite molecular structure composed of an axial molecule and a plurality of cyclic molecules threaded onto the axial molecule, and side chains having OH groups introduced into the cyclic molecules, 1 mol % or more to less than 100 mol % of OH groups in the side chains are modified with a compound having a radical-polymerizable group, (B) a photochromic compound, and (C) a polymerizable monomer other than the (A) polyrotaxane monomer.