公开(公告)号：US20230242809A1

公开(公告)日：2023-08-03

申请号：US17768770

申请日：2020-10-09

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Junji TAKENAKA ,  Junji MOMODA ,  Katsuhiro MORI

IPC: C09K9/02 ,  C08G77/48 ,  C09B69/10 ,  C09D5/29 ,  C09D183/14

CPC classification number: C09K9/02 ,  C08G77/485 ,  C09B69/109 ,  C09D5/29 ,  C09D183/14 ,  C09K2211/1475 ,  C09K2211/145 ,  C09K2211/1425 ,  G02C7/102

Abstract: A photochromic hydroxyurethane compound of the present invention is characterized in that, on condition of having at least one photochromic moiety as the photochromic minimal unit in a molecule, it has a hydroxyurethane constitutional unit represented by Formula (1):


—X—O—CO—NH—  (1)

In the formula, X is an oxygen-containing chain organic group having a hydroxyl group as a substituent, or a hydrogen atom in the hydroxyl group is substituted by any one of (A): a photochromic group having the photochromic moiety; (B): a polymerization reactive group having a polymerizable substituent; (C) an alkyl group having 1 to 10 carbon atoms; (D) a cycloalkyl group having 3 to 10 carbon atoms; or (E): an aryl group having 6 to 14 carbon atoms (each of the groups (C)-(E) can be bonded to an oxygen atom derived from the hydroxyl group via the oxygen-containing chain organic group).

公开(公告)号：US20230133211A1

公开(公告)日：2023-05-04

申请号：US17798597

申请日：2021-02-18

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Junji TAKENAKA ,  Junji MOMODA ,  Srinivas VENU ,  Katsuhiro MORI

IPC: C07D493/10 ,  C08K5/159 ,  C07F7/18 ,  C08K5/549

Abstract: The photochromic cyclic compound of the present invention is represented by Formula (1) below: in the formula, L is a divalent bridging group and PC is a divalent T-type photochromic basic structural group having a naphthopyran structure, where one end of the bridging group L is bonded to at least the 3-position of the naphthopyran structure.

公开(公告)号：US20220244428A1

公开(公告)日：2022-08-04

申请号：US17617615

申请日：2019-06-27

Applicant: MENICON CO., LTD. ,  TOKUYAMA CORPORATION

Inventor： Tomomi TOMIDA ,  Kazuhiko NAKADA ,  Masaki BABA ,  Satomu NIIDA ,  Junji MOMODA ,  Masayuki MIYAZAKI ,  Junji TAKENAKA

IPC: G02B1/04 ,  A61F2/16 ,  G02B5/23 ,  G02C7/04 ,  G02C7/10

Abstract: An ophthalmic medical device including a photochromic polymer having higher transparency under an inactive state through use of a photochromic monomer. An ophthalmic medical device according to one embodiment that includes a photochromic polymer obtained by polymerizing monomer components including a photochromic monomer and a lactam ring-containing monomer, wherein a content ratio of the lactam ring-containing monomer in the monomer components is from 10 wt % to 50 wt %. The ophthalmic medical device is typically a contact lens or an intraocular lens.

公开(公告)号：US20220213050A1

公开(公告)日：2022-07-07

申请号：US17613129

申请日：2020-06-08

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Junji TAKENAKA ,  Junji MOMODA

IPC: C07D311/94 ,  C09K9/02 ,  G02C7/10 ,  G02C7/04

Abstract: A chromene compound which can exhibit excellent photochromic properties. The chromene compound is represented by the following formula (1). In the formula, at least one of R1 or R2 represents the group having the radical-polymerizable group, wherein the group having a radical-polymerizable group is represented by the following formula (2) (wherein R10 represents a linear or branched alkylene group having 1 to 10 carbon atoms and l represents an integer of from 0 to 50); and the ring Z that is represented by the following formula (Z) and is spiro-bonded to a carbon atom located at position-13 in the formula (1) is preferably an aliphatic cyclic group that may have a substituent, the group having 3 to 20 carbon atoms for forming the ring together with the carbon atom at the 13-position, or the like.

公开(公告)号：US20210292641A1

公开(公告)日：2021-09-23

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

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.