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1. 发明申请

US20200223975A1 COMPOSITION FOR USE AS OPTICAL MATERIAL 审中-公开
公开(公告)号：US20200223975A1
公开(公告)日：2020-07-16
申请号：US16492868
申请日：2018-02-26
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Kazuki KARIYAZONO , Takashi AOKI , Kouhei TAKEMURA , Kikuo FURUKAWA
IPC分类号： C08G18/76 , C08G18/64 , C08G18/38 , C08G18/65 , C08G18/16 , C08G18/24 , G02B1/04
摘要： The purpose of the present invention is to appropriately control the rate of polymerization of a composition in which a thiol compound and an isocyanate compound are added to an episulfide compound and thereby provide an optical material which has high transparency. This composition for use as optical material comprises (a) an episulfide compound, (b) an isocyanate compound, (c) a thiol compound, and (d) a benzyl halide compound represented by formula (1): wherein: X is a halogen; L is selected from the group consisting of a hydrogen atom, a methyl group, a halogen, a mercaptomethyl group, and an isocyanate methyl group; and n is 1 or 2.

2. 发明申请

US20230100848A1 COMPOSITION FOR OPTICAL MATERIAL 有权
公开(公告)号：US20230100848A1
公开(公告)日：2023-03-30
申请号：US17925362
申请日：2021-05-21
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Mariko SADO , Kouhei TAKEMURA , Hiroshi HORIKOSHI
IPC分类号： C08G75/08 , C08G63/682 , G02B1/04 , G02C7/02
摘要： A composition for an optical material contains (a) an episulfide compound, (b) a polymerization catalyst, and (c) an ester compound having a halogen at the α position. The (c) ester compound having a halogen at the a position is preferably at least one compound selected from the group consisting of dimethyl chloromalonate, diethyl chloromalonate, dimethyl bromomalonate, and diethyl bromomalonate.

3. 发明申请

US20210340129A1 EPISULFIDE COMPOUND AND COMPOSITION FOR OPTICAL MATERIAL 有权
公开(公告)号：US20210340129A1
公开(公告)日：2021-11-04
申请号：US17261303
申请日：2019-06-27
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Kouhei TAKEMURA , Yousuke IMAGAWA , Hiroshi HORIKOSHI
IPC分类号： C07D409/14 , C07D331/02 , C08G75/08 , G02B1/04
摘要： Provided is a composition for optical materials that gives optical materials which can have at least one improved property selected from among satisfactory mold releasability after polymerization and curing, unsusceptibility to separation from the mold during polymerization and curing, transparency, and low-level striae. The present invention further provides a compound represented by formula (1). The composition for optical materials comprises the compound represented by formula (1) and a compound represented by formula (2). (In formula (1), X1 and X2 represent O or S, provided that both X1 and X2 are O or that X1 is O and X2 is S.)

4. 发明申请

US20200024450A1 OPTICAL MATERIAL COMPOSITION 审中-公开
公开(公告)号：US20200024450A1
公开(公告)日：2020-01-23
申请号：US16483542
申请日：2018-02-06
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Yoshihiko NISHIMORI , Yosuke IMAGAWA , Kouhei TAKEMURA , Hiroshi HORIKOSHI , Yoshiaki YAMAMOTO
IPC分类号： C08L81/02 , C08G75/08 , C08K3/06 , G02B1/04
摘要： Provided is an optical material composition which makes it possible to design an optical material exhibiting a broad range of properties. This optical material composition contains a compound (A) represented by formula (1), 1,2,3,5,6-pentathiepane (b), and if necessary, a compound (B) represented by formula (2). The content of the compound (B) constitutes 0-30 mass % of the total mass of the composition: (In the formula, n m represents an integer which is 0-4, and n represents an integer which is 0-2).

5. 发明申请

US20180079719A1 NOVEL THIOL COMPOUND COMPOSITION FOR OPTICAL MATERIAL 审中-公开
公开(公告)号：US20180079719A1
公开(公告)日：2018-03-22
申请号：US15563118
申请日：2017-03-01
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Kouhei TAKEMURA , Takashi AOKI
IPC分类号： C07C323/16 , C08G75/12 , C07C321/08 , G02B1/04
CPC分类号： C07C323/16 , C07C321/08 , C07D331/02 , C08G75/02 , C08G75/045 , C08G75/08 , C08G75/12 , C08L75/00 , G02B1/041 , C08L81/02
摘要： According to the present invention, it is possible to provide a polythiol composition, which comprises a polythiol (A) represented by formula (1) and a thiol compound (B) represented by formula (2). (In formula (1), p and q each independently represent an integer of 1 to 3.) (In formula (2), p and q each independently represent an integer of 1 to 3.)

6. 发明申请

US20160355641A1 OPTICAL MATERIAL COMPOSITION, AND APPLICATION FOR SAME 有权
标题翻译：光学材料组合物及其应用
公开(公告)号：US20160355641A1
公开(公告)日：2016-12-08
申请号：US15112507
申请日：2016-03-01
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Kouhei TAKEMURA , Takashi AOKI
IPC分类号： C08G75/08 , G02B1/04 , C08L81/02
CPC分类号： C08G75/08 , C08G18/38 , C08L81/00 , C08L81/02 , G02B1/04 , G02B1/041
摘要： Provided is an optical material composition, with which an optical material is obtained having excellent quality such as excellent color tone and lightfastness, a low level of striae, and high transparency when polymerization-cured. Through use of the optical material composition, which includes a compound represented by formula (1) and an episulfide compound represented by formula (2), the ratio of the compound represented by formula (1) to the combined total amount of the compound represented by formula (1) and the episulfide compound represented by formula (2) being 0.001-5.0% by mass, it is possible to provide an optical material composition for manufacturing an optical material having a high refractive index, the optical material having excellent quality such as transparency, striae, color tone, and lightfastness. (In the formula, m represents an integer of 0-4, and n represents an integer of 0-2.)
摘要翻译：提供一种光学材料组合物，通过该光学材料组合物，当聚合固化时，获得具有优异色彩的优良色调和耐光性，低水平条纹和高透明度的光学材料。通过使用包含由式（1）表示的化合物和式（2）表示的环硫化合物的光学材料组合物，由式（1）表示的化合物与由式（1）和由式（2）表示的环硫化合物为0.001-5.0质量％，可以提供具有高折射率的光学材料的光学材料组合物，该光学材料具有优良的质量，例如透明度，条纹，色调和耐光性。（式中，m表示0〜4的整数，n表示0〜2的整数。

7. 发明申请

US20210292297A1 NOVEL ALLYL COMPOUND AND COMPOSITION FOR OPTICAL MATERIAL 有权
公开(公告)号：US20210292297A1
公开(公告)日：2021-09-23
申请号：US17264018
申请日：2019-08-01
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Kouhei TAKEMURA , Hiroshi HORIKOSHI
IPC分类号： C07D331/02 , C08G75/08 , G02B1/04
摘要： The present invention makes it possible to provide a compound represented by formula (1) and a composition for an optical material containing this compound. (Where m+n=4, m represents an integer of from 0 to 3, and n represents an integer of from 1 to 4.) In addition, the present invention makes it possible to provide a method for producing an optical material, the method including a step for adding 0.0001-10 parts by mass of a polymerization catalyst per 100 parts by mass of the composition for an optical material, polymerizing, and curing.

8. 发明申请

US20210009553A1 PRODUCTION METHOD FOR 1,2,3,5,6-PENTATHIEPANE 有权
公开(公告)号：US20210009553A1
公开(公告)日：2021-01-14
申请号：US16980030
申请日：2019-03-05
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Hiroyuki TANAGI , Kouhei TAKEMURA , Hiroshi HORIKOSHI
IPC分类号： C07D341/00 , B01J31/02
摘要： The present invention enables provision of a production method for 1,2,3,5,6-pentathiepane, the method comprising, in the following order, step A for reacting a trithiocarbonate, sulfur, and a methane dihalide together using a phase-transfer catalyst in a multilayer system having a water layer and an organic layer, step B for separating the water layer from the organic layer, and step C for stopping the reaction using an acid.

9. 发明申请

US20200216616A1 OPTICAL MATERIAL COMPOSITION 审中-公开
公开(公告)号：US20200216616A1
公开(公告)日：2020-07-09
申请号：US16483219
申请日：2018-02-06
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Yoshihiko NISHIMORI , Yosuke IMAGAWA , Kouhei TAKEMURA , Hiroshi HORIKOSHI , Yoshiaki YAMAMOTO
IPC分类号： C08G75/08 , C07D331/02 , G02B1/04
摘要： Provided an optical material composition which makes it possible to design an optical material exhibiting a broad range of properties. This optical material composition contains a compound (A) represented by formula (1) and a polythiol (a), and does not contain 1,2,3,5,6-pentathiepane (b).

10. 发明申请

US20170051095A1 COMPOSITION FOR OPTICAL MATERIAL AND METHOD FOR PRODUCING SAME, AND OPTICAL MATERIAL PRODUCED FROM COMPOSITION FOR OPTICAL MATERIAL 有权
标题翻译：用于光学材料的组合物及其制备方法，以及由光学材料组合物生产的光学材料
公开(公告)号：US20170051095A1
公开(公告)日：2017-02-23
申请号：US15119854
申请日：2015-04-10
申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人： Kouhei TAKEMURA , Tetsuya KONISHI , Takashi AOKI , Hiroshi HORIKOSHI
IPC分类号： C08G18/38 , G02B1/04 , C08G18/75
CPC分类号： C08G18/3874 , C07D331/02 , C08G18/168 , C08G18/3876 , C08G18/755 , C08G75/08 , C08G75/14 , G02B1/041
摘要： According to the present invention, a composition for an optical material can be provided, which is characterized by containing an episulfide compound having a value of turbidity in acetone of 3.0 ppm or less. According to a preferred embodiment of the present invention, a composition for an optical material can be provided, which comprises: (a) a compound (an episulfide compound) which has a structure represented by formula (1) and has a value of turbidity in acetone of 3.0 ppm or less; (b) a polyisocyanate compound; and (c) a polythiol compound. (In the formula, m represents an integer of 0 to 4; and n represents an integer of 0 or 1.)
摘要翻译：（式中，m表示0〜4的整数，n表示0或1的整数）

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