公开(公告)号：EP3778698A1

公开(公告)日：2021-02-17

申请号：EP19775953.3

申请日：2019-03-08

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： SHIRATAKE Munenori ,  ISHIHARA Kentaro ,  HIROSE Koji ,  IKEDA Shinya ,  KATO Noriyuki ,  KONDO Mitsuteru ,  SUZUKI Shoko ,  OSHIMA Kensuke ,  NAGAYAMA Shuya ,  KANDA Masahiro

IPC分类号： C08G64/00 ,  G02B1/04 ,  C08G64/16 ,  C08G64/30

摘要： Provided are a polycarbonate having an appropriate refractive index and an appropriate Abbe number, and comprehensively excelling in heat resistance, total light transmittance, and hue, and a molded article thereof. The polycarbonate includes a constituent unit represented by Formula [I] and a constituent unit having a hydrocarbon group containing a cyclic structure. In Formula [I], R 1 and R 2 each independently denote a hydrocarbon group, and each R 3 independently denotes a hydrogen atom, a heteroatom-containing group, a halogen atom-containing group, a linear alkyl group having from 1 to 6 carbon atoms, a branched alkyl group having from 3 to 6 carbon atoms, or a group including an aryl group and having from 6 to 12 carbon atoms.

公开(公告)号：EP3489279A1

公开(公告)日：2019-05-29

申请号：EP17831032.2

申请日：2017-07-19

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： KATO Noriyuki ,  KONDO Mitsuteru ,  ISHIHARA Kentaro ,  SHIRATAKE Munenori ,  HIROSE Koji ,  IKEDA Shinya ,  OSHIMA Kensuke ,  NAGAYAMA Shuya ,  SUZUKI Shoko

IPC分类号： C08G64/04 ,  C08G64/30 ,  G02B1/04

摘要： The present invention provides a polycarbonate resin having a high refractive index, low Abbe number, and high moist heat resistance. The above problem, according to one embodiment, can be solved by a polycarbonate resin including structural units represented by general formula (1).

公开(公告)号：EP3138876B1

公开(公告)日：2018-10-17

申请号：EP15785795.4

申请日：2015-04-28

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： ISHIZUKA Hirohito ,  KATO Noriyuki ,  ISHIHARA Kentaro ,  SHIRATAKE Munenori ,  HIRAKAWA Manabu

IPC分类号： C08L69/00 ,  C08G64/06 ,  G02B1/04

CPC分类号： C08L69/00 ,  C08G64/06 ,  C08L2201/10 ,  C08L2205/02 ,  C08L2205/025 ,  G02B1/04 ,  G02B1/041

摘要： [Problem] To provide: a polycarbonate resin composition which has a high refractive index and fluidability at a suitable level for molding use, also has low birefringence, and rarely undergoes optical distortion; and an optical material. [Solution] A polycarbonate resin composition comprising: a polycarbonate resin (A) which has a constitutional unit (a) represented by general formula (4); and a polycarbonate resin (B) which has a constitutional unit (b) represented by general formula (5). (In formula (4), X represents an alkylene group having 1 to 4 carbon atoms.) (In formula (5), R 1 and R 2 independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxyl group having 1 to 20 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms, a cycloalkoxyl group having 5 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aryloxy group having 6 to 20 carbon atoms; and Y represents an alkylene group having 1 to 4 carbon atoms.)

公开(公告)号：EP2918621A1

公开(公告)日：2015-09-16

申请号：EP13852903.7

申请日：2013-11-01

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： ISHIZUKA Hirohito ,  NISHIMURA Yoshio ,  KATO Noriyuki ,  ISHII Takashi ,  HIROSE Kouji ,  ISHIHARA Kentarou ,  SHIRATAKE Munenori

IPC分类号： C08G64/06 ,  C08G64/30 ,  G02B1/04

摘要： The polycarbonate resin of the present invention has a structural unit represented by general formula (A):

(in formula (A), X is an alkylene group having 1 to 4 carbon atoms).

摘要翻译： 本发明的聚碳酸酯树脂具有由通式（A）表示的结构单元：（式（A）中，X为碳原子数1〜4的亚烷基）。

公开(公告)号：EP3138876A1

公开(公告)日：2017-03-08

申请号：EP15785795.4

申请日：2015-04-28

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： ISHIZUKA Hirohito ,  KATO Noriyuki ,  ISHIHARA Kentaro ,  SHIRATAKE Munenori ,  HIRAKAWA Manabu

IPC分类号： C08L69/00 ,  C08G64/06 ,  G02B1/04

CPC分类号： C08L69/00 ,  C08G64/06 ,  C08L2201/10 ,  C08L2205/02 ,  C08L2205/025 ,  G02B1/04 ,  G02B1/041

摘要： [Problem] To provide: a polycarbonate resin composition which has a high refractive index and fluidability at a suitable level for molding use, also has low birefringence, and rarely undergoes optical distortion; and an optical material.
[Solution] A polycarbonate resin composition comprising: a polycarbonate resin (A) which has a constitutional unit (a) represented by general formula (4); and a polycarbonate resin (B) which has a constitutional unit (b) represented by general formula (5). (In formula (4), X represents an alkylene group having 1 to 4 carbon atoms.) (In formula (5), R 1 and R 2 independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxyl group having 1 to 20 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms, a cycloalkoxyl group having 5 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aryloxy group having 6 to 20 carbon atoms; and Y represents an alkylene group having 1 to 4 carbon atoms.)

摘要翻译： [问题]为了提供：其中有在合适的水平用于模制中使用的高折射率和流体能力，即具有低双折射性，且很少光学畸变下进入的聚碳酸酯树脂组合物; 和光学材料。 [解决方法]一种聚碳酸酯树脂组合物，包括：聚碳酸酯树脂（A），其具有的结构单元（a）以一般式（4）代表的; 和聚碳酸酯树脂（B），其具有由通式（5）表示的结构单元（b）。 （在式（4）中，X darstellt在具有1至4个碳原子的亚烷基。）（在式（5）中，R 1和R 2独立地表示氢原子，烷氧基具有1至20碳原子烷基的 具有1至20个碳原子基团，具有5至20个碳原子的环烷基，具有5至20个碳原子的具有6-20个碳原子，或具有6至20个碳原子的芳氧基芳基的环烷氧基;和 ÿdarstellt在具有1至4个碳原子的亚烷基。）

公开(公告)号：EP2918623A1

公开(公告)日：2015-09-16

申请号：EP13853025.8

申请日：2013-11-06

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： SHIRATAKE Munenori ,  NISHIMURA Yoshio ,  KATO Noriyuki ,  ISHII Takashi ,  ISHIZUKA Hirohito

IPC分类号： C08G65/40 ,  G02B1/04 ,  G02C7/00

CPC分类号： C08G65/40 ,  C08L59/04 ,  G02B1/04 ,  G02B1/041 ,  G02C7/00 ,  G11B7/263 ,  G11B2007/25303 ,  C08L61/12 ,  C08L45/00

摘要： Provided is a thermoplastic resin having a high refractive index, which is favorable as an optical material. Provided are a polyformal resin copolymer comprising a high refractive index diol that has a fluorene skeleton and an aromatic diol that has a low glass-transition point when polymerized, and a method for producing the same.

摘要翻译： 提供具有高折射率的热塑性树脂，其作为光学材料是有利的。 提供了包含具有芴骨架的高折射率二醇和聚合时玻璃化转变点低的芳族二醇的聚甲醛树脂共聚物及其制造方法。