公开(公告)号：US11767467B2

公开(公告)日：2023-09-26

申请号：US17258375

申请日：2019-07-18

Applicant: TOKUYAMA CORPORATION

Inventor： Takao Noguchi ,  Junji Takenaka ,  Junji Momoda ,  Takayoshi Kawasaki ,  Yasutomo Shimizu ,  Masayuki Miyazaki

IPC: C09K9/02 ,  C08G65/333 ,  G02B1/04

CPC classification number: C09K9/02 ,  C08G65/33396 ,  C09K2211/1475 ,  G02B1/04

Abstract: The present invention relates to a photochromic compound including a polyvalent residue on which at least one group having a photochromic moiety is substituted, and at least one long-chain group not containing a photochromic moiety and having a molecular weight of 300 or more is further substituted; and a curable composition containing the same. In accordance with the present invention, it is possible to provide a photochromic compound which has high solubility in a polymerizable compound serving as a matrix while retaining high photochromic characteristics and is hardly affected by the matrix; and a curable composition containing the same.

公开(公告)号：US11066523B2

公开(公告)日：2021-07-20

申请号：US16621634

申请日：2018-06-18

Applicant: TOKUYAMA CORPORATION

Inventor： Junji Takenaka ,  Junji Momoda ,  Takayoshi Kawasaki ,  Takao Noguchi ,  Yasutomo Shimizu ,  Masayuki Miyazaki

IPC: G02B5/23 ,  C08G83/00 ,  G02C7/10 ,  C08B37/16

Abstract: A photochromic polyrotaxane compound which comprises an axial molecule and a plurality of cyclic molecules clathrating the axial molecule, wherein at least one side chain containing a photochromic moiety is bonded to at least one of the cyclic molecules, and a curable composition comprising the photochromic polyrotaxane compound and a polymerizable compound.