公开(公告)号：US20230280500A1

公开(公告)日：2023-09-07

申请号：US18019745

申请日：2021-08-04

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Katsuhiro MORI ,  Junji MOMODA

IPC: G02B1/04 ,  C08G65/34 ,  C08L71/08

CPC classification number: G02B1/041 ,  C08G65/34 ,  C08L71/08

Abstract: The present invention aims to provide a photochromic compound capable of exhibiting photochromic properties regardless of matrix, and the compound is stably dispersed without aggregation in a process of molding (curing) an optical base material. According to the present invention, a polymer photochromic compound, which has a block polymeric group of an oligomeric chain group having relatively favorable compatibility with a solid matrix and an oligomeric chain group having poor compatibility with a solid matrix, forms a nano- to micro-phase separation structure in a solid matrix. The compound does not rely on the solid matrix, its dispersibility is improved and aggregation is prevented or reduced, whereby excellent photochromic properties can be exhibited.

公开(公告)号：US20200172681A1

公开(公告)日：2020-06-04

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: C08G83/00 ,  G02C7/10 ,  G02B5/23

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.

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.

公开(公告)号：US20250101294A1

公开(公告)日：2025-03-27

申请号：US18730613

申请日：2023-01-13

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Srinivas VENU ,  Katsuhiro MORI

IPC: C09K9/02 ,  C07C39/42 ,  C07C43/23 ,  C07C217/78 ,  C07C323/21 ,  C07D311/94 ,  C07D317/70 ,  C07D327/04 ,  C07D493/04 ,  C07D497/04 ,  C08K5/1545 ,  C08K5/1565 ,  C08K5/357 ,  C09B57/02 ,  G02B1/04 ,  G02C7/10

Abstract: The purpose of the present invention is to provide: a photochromic compound having an excellent color fading rate and excellent durability; a naphthol derivative that can become an intermediate for the photochromic compound; and a curable composition, an optical article, a lens and eyeglasses each containing the photochromic compound. According to embodiments, a photochromic compound having a backbone represented by formula (1) is provided. In formula (1), M represents C, Si or Ge; R1 represents a haloalkyl group having 1 to 20 carbon atoms inclusive; R2 represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms inclusive or a substituted or unsubstituted haloalkyl group having 1 to 20 carbon atoms inclusive.

公开(公告)号：US20240158647A1

公开(公告)日：2024-05-16

申请号：US18279710

申请日：2022-03-08

Applicant: TOKUYAMA CORPORATION

Inventor： Taichi HANASAKI ,  Masayuki MIYAZAKI ,  Toshimitsu HIRAREN ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09D5/29 ,  C08F289/00 ,  C08K5/3435 ,  C09D5/00 ,  C09D7/20 ,  C09D7/47 ,  C09D7/63 ,  C09D151/08 ,  C09D175/04

CPC classification number: C09D5/29 ,  C08F289/00 ,  C08K5/3435 ,  C09D5/002 ,  C09D7/20 ,  C09D7/47 ,  C09D7/63 ,  C09D151/08 ,  C09D175/04 ,  G02C7/102

Abstract: The present invention provides: a photochromic curable composition for providing a cured product having excellent durability and appearance; and a cured product (photochromic laminate) having a particularly favorable appearance. A photochromic curable composition according to an embodiment includes: (A1) a first hindered amine compound having at least one reactive group selected from the group consisting of a radically polymerizable group and a group reactive with a radically polymerizable group; (B) a radically polymerizable monomer comprising a polyrotaxane component (B1) having a radically polymerizable group while not having a piperidyl group; and (C) a photochromic compound.

公开(公告)号：US20210032532A1

公开(公告)日：2021-02-04

申请号：US17047659

申请日：2019-04-15

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Junji TAKENAKA

IPC: C09K9/02 ,  C08G65/332 ,  C08G77/14 ,  C08L83/06 ,  C08G18/72 ,  C08K5/1545

Abstract: The invention is a photochromic compound having an indenonaphthopyran skeleton, and the indenonaphthopyran skeleton has an alkenyl group having 10 to 30 carbon atoms, and an oligomer chain group A having 3 or more recurring units selected from a polyalkylene oxide oligomer chain group, a polyester oligomer chain group, a polysiloxane chain group and a polyester polyether oligomer chain group. The invention can provide a photochromic compound capable of expressing excellent photochromic characteristics in various cured products and capable of preventing cured products from becoming cloudy.