公开(公告)号：US20150030866A1

公开(公告)日：2015-01-29

申请号：US14384892

申请日：2013-04-17

Applicant: TOKUYAMA CORPORATION

Inventor： Shinobu Izumi ,  Junji Takenaka ,  Junji Momoda

IPC: G02B1/04 ,  G02B5/23 ,  G02B1/10 ,  C09K9/00 ,  C07C235/74

CPC classification number: G02B1/04 ,  C07C233/36 ,  C07C233/42 ,  C07C233/69 ,  C07C235/10 ,  C07C235/74 ,  C08F2/48 ,  C08F220/56 ,  C08F230/08 ,  C08F2222/1026 ,  C09D4/00 ,  C09K9/00 ,  C09K9/02 ,  C09K2211/14 ,  G02B1/10 ,  G02B5/23 ,  Y10T428/31725 ,  C08F220/26 ,  C08F2220/283 ,  C08F2230/085 ,  C08F2222/1013

Abstract: A photochromic curable composition containing, as a radically polymerizable monomer component (A), a (meth)acrylic-amide polymerizable monomer (A1) having 2 to 6 (meth)acryloyloxy groups and 2 to 6 divalent amide groups (—NHCO—), and a non-amide polymerizable monomer (A2) having at least 3 radically polymerizable groups but having no amide bond. From the photochromic composition, there can be obtained a photochromic cured body having excellent photochromic properties such as a high color density, a high fading rate, and excellent mechanical strength.

Abstract translation: 作为自由基聚合性单体成分（A），具有2〜6个（甲基）丙烯酰氧基和2〜6个二价酰胺基（-NHCO-）的（甲基）丙烯酰胺系聚合性单体（A1） 和具有至少3个可自由基聚合的基团但不具有酰胺键的非酰胺可聚合单体（A2）。 从光致变色组合物可以获得具有优异的光致变色性质如高色密度，高褪色率和优异机械强度的光致变色固化体。

公开(公告)号：US12054568B2

公开(公告)日：2024-08-06

申请号：US17413841

申请日：2019-12-17

Applicant: TOKUYAMA CORPORATION

Inventor： Ayako Ohara ,  Taichi Hanasaki ,  Junji Takenaka ,  Junji Momoda

IPC: C08F2/46 ,  C08F2/50 ,  C08F20/14 ,  C08F222/10 ,  C08F290/14 ,  C08G61/04 ,  C08K5/3475 ,  C08L75/06 ,  G02B1/111 ,  G02B1/04

CPC classification number: C08F222/1063 ,  C08F2/50 ,  C08F20/14 ,  C08F290/142 ,  C08K5/3475 ,  C08L75/06 ,  G02B1/111 ,  C08F2800/20 ,  G02B1/041

Abstract: The present invention is an optical material composition containing (A) 100 parts by mass of a polymerizable monomer, and (B) 0.001 to 0.3 parts by mass of a UV absorbent having a maximum absorption wavelength of 360 nm or more and less than 380 nm and having a specific structure, and an optical material formed of the composition. According to the present invention, there can be provided an optical material composition containing a UV absorbent and having good long-term storage stability, and an optical material formed of the composition, in particular, an optical material composition capable of forming a plastic lens having a high blue light cut rate.

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：US08916071B2

公开(公告)日：2014-12-23

申请号：US14346724

申请日：2012-09-21

Applicant: Tokuyama Corporation

Inventor： Yasutomo Shimizu ,  Shinobu Izumi ,  Junji Takenaka ,  Junji Momoda

IPC: G02B5/23 ,  C07C323/21 ,  C09K9/02 ,  C07D311/78 ,  F21V9/00 ,  G02B5/02 ,  G02C7/10 ,  G02F1/361 ,  G03B11/00 ,  G02F1/03 ,  G02F1/07

CPC classification number: C09K9/02 ,  C07C323/21 ,  C07C323/37 ,  C07C323/38 ,  C07C2603/94 ,  C07D213/70 ,  C07D295/08 ,  C07D311/78 ,  C07D311/94 ,  C07D405/12 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1088

Abstract: A chromene compound which has a sulfur-containing substituent represented by the following formula (2) at the 6-position and/or 7-position carbon atom of an indeno(2,1-f)naphtho(1,2-b)pyran structure and is excellent in photochromic properties and stability at a high temperature. In the formula (2), ring X is an aromatic hydrocarbon ring or aromatic heterocyclic ring, R3 and R4 are each independently an alkyl group, haloalkyl group, cycloalkyl group, alkoxy group, amino group, heterocyclic group containing a ring member nitrogen atom and bonded to the ring X bonded thereto via the nitrogen atom, halogen atom, aryloxy group or aryl group, and “a” is an integer of 0 to 4.

Abstract translation: 在茚并（2,1-f）萘酚（1,2-b）吡喃的6位和/或7位碳原子上具有由下式（2）表示的含硫取代基的色烯化合物 结构，并且在高温下的光致变色性质和稳定性优异。 式（2）中，环X为芳香族烃环或芳香族杂环，R3和R4各自独立地为烷基，卤代烷基，环烷基，烷氧基，氨基，含有环成员氮原子的杂环基和 与通过氮原子，卤素原子，芳氧基或芳基键合的环X键合，“a”为0〜4的整数。

公开(公告)号：US12077623B2

公开(公告)日：2024-09-03

申请号：US17413667

申请日：2019-12-17

Applicant: TOKUYAMA CORPORATION

Inventor： Taichi Hanasaki ,  Ayako Ohara ,  Junji Takenaka ,  Junji Momoda

IPC: C08F2/46 ,  C08F2/50 ,  C08F20/14 ,  C08F222/10 ,  C08F290/14 ,  C08G61/04 ,  C08K5/3475 ,  C08L75/06 ,  G02B1/111 ,  G02B1/04

CPC classification number: C08F222/1063 ,  C08F2/50 ,  C08F20/14 ,  C08F290/142 ,  C08K5/3475 ,  C08L75/06 ,  G02B1/111 ,  C08F2800/20 ,  G02B1/041

Abstract: The present invention relates to a curable composition for an optical material, containing (A) 100 parts by mass of a radical polymerizable monomer, (B) 0.1 to 5 parts by mass of an ultraviolet absorber composed of a benzotriazole compound having a specific structure, which has a maximum absorption wavelength of 360 nm or more and less than 380 nm and an absolute value of the difference in solubility parameter (SP value) from the radical polymerizable monomer (A) of 5.5 (cal/cm3)1/2 or less, (C) 1 to 5 parts by mass of an ultraviolet absorber which is at least one selected from a benzotriazole compound, a benzophenone compound and a triazine compound and has a maximum absorption wavelength of less than 360 nm, and (D) 0.05 to 0.5 parts by mass of a radical polymerization initiator. According to the present invention, it is possible to provide a curable composition for an optical material which has an ability to cut ultraviolet rays and blue light and can be suitably used as a coating material having good storage stability and weather resistance.

公开(公告)号：US09890324B2

公开(公告)日：2018-02-13

申请号：US14770181

申请日：2014-02-26

Applicant: TOKUYAMA CORPORATION

Inventor： Yasutomo Shimizu ,  Junji Takenaka ,  Junji Momoda ,  Katsuhiro Mori

IPC: B32B27/30 ,  C09K9/02 ,  C08F220/28 ,  C08F2/50 ,  G02C7/10 ,  C08F290/06 ,  G02B1/10 ,  G02B5/22 ,  G02B5/23

CPC classification number: C09K9/02 ,  C08F2/50 ,  C08F220/28 ,  C08F290/061 ,  C09K2211/1088 ,  C09K2211/1425 ,  G02B1/10 ,  G02B5/223 ,  G02B5/23 ,  G02C7/102

Abstract: A curable composition which comprises a carbonate-based polymerizable monomer represented by the following formula, other polymerizable monomers and a photochromic compound, can be used even under high-temperature and high-humidity conditions without any problems and provides a cured product having excellent photochromic properties. wherein A and A′ are each a linear or branched alkylene group having 2 to 15 carbon atoms, “a” is an average value of 1 to 20, when there are a plurality of A's, A's may be the same or different, R1 is a hydrogen atom or methyl group, and R2 is a (meth)acryloyloxy group or hydroxyl group.

公开(公告)号：US20170203526A1

公开(公告)日：2017-07-20

申请号：US15321263

申请日：2015-07-21

Applicant: Tokuyama Corporation

Inventor： Yoshihiro Asahara ,  Takashi Tamukai ,  Junji Takenaka ,  Junji Momoda ,  Katsuhiro Mori

IPC: B29D11/00 ,  G02B5/08 ,  G02C7/10 ,  G02B5/23

CPC classification number: B29D11/00884 ,  B05D1/005 ,  B05D3/067 ,  B29D11/00442 ,  B29D11/00653 ,  G02B5/08 ,  G02B5/23 ,  G02C7/102

Abstract: A photopolymerization device (20) has: a workpiece holding part (1) that holds a workpiece (W); and a photoirradiation device (6) that is arranged above the workpiece holding part (1) and that radiates light toward the workpiece (W). The photopolymerization device (20) is configured such that a reflecting plate (3) that has a reflecting surface that has a specular gloss at angles of 60° of 10-200 is arranged below the workpiece holding part (1) and such that light that arrives at the reflecting surface of the reflecting plate (3) is radiated toward the workpiece (W).

公开(公告)号：US11976149B2

公开(公告)日：2024-05-07

申请号：US17413754

申请日：2019-12-17

Applicant: TOKUYAMA CORPORATION

Inventor： Ayako Ohara ,  Taichi Hanasaki ,  Junji Takenaka ,  Junji Momoda

IPC: G02B1/111 ,  C08F2/50 ,  C08F20/14 ,  C08F222/10 ,  C08F290/14 ,  C08K5/3475 ,  C08L75/06 ,  G02B1/04

CPC classification number: C08F222/1063 ,  C08F2/50 ,  C08F20/14 ,  C08F290/142 ,  C08K5/3475 ,  C08L75/06 ,  G02B1/111 ,  C08F2800/20 ,  G02B1/041

Abstract: The present invention relates to a curable composition for an optical material, containing (A) 100 parts by mass of a radical polymerizable monomer, (B) 0.005 to 0.5 parts by mass of a tetraazaporphyrin compound having a maximum absorption wavelength in a range of 560 nm or more and 620 nm or less, and (C) 0.1 to 10 parts by mass of an ultraviolet absorber having a maximum absorption wavelength in a range of 330 nm or more and 350 nm or less. According to the present invention, it is possible to provide a curable composition for an optical material, capable of being suitably used as a coating material that can easily provide an optical material having good antiglare properties and excellent weather resistance.

公开(公告)号：US11879097B2

公开(公告)日：2024-01-23

申请号：US17047659

申请日：2019-04-15

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki Miyazaki ,  Junji Takenaka

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

CPC classification number: C09K9/02 ,  C08G18/722 ,  C08G65/332 ,  C08G77/14 ,  C08K5/1545 ,  C08L83/06 ,  C09K2211/1088

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.

公开(公告)号：US20230260669A1

公开(公告)日：2023-08-17

申请号：US18015679

申请日：2021-07-13

Applicant: TOKUYAMA CORPORATION

Inventor： Takayoshi Kawasaki ,  Junji Takenaka ,  Junji Momoda

IPC: G21F1/10 ,  C09K9/00 ,  C08F230/02 ,  C08F2/44

CPC classification number: G21F1/103 ,  C09K9/00 ,  C08F230/02 ,  C08F2/44 ,  C09K2211/1096 ,  C09K2211/1088

Abstract: The present invention provides: a curable composition which contains a bismuth compound, wherein a phosphoric acid ester having a (meth)acryloyl group is bonded to bismuth, and a nitrile compound having a radically polymerizable carbon-carbon double bond; a cured body which is obtained by curing this curable composition; a multilayer body which is composed of the above-described cured body and a cured body that is obtained by curing a photochromic curable composition; and a radiation protective material which is formed of the above-described cured body or the above-described multilayer body.