公开(公告)号：US20210054143A1

公开(公告)日：2021-02-25

申请号：US17040369

申请日：2019-03-08

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

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

IPC分类号： C08G64/16 ,  C08G64/02 ,  C08G64/30 ,  G02B1/04

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], R1 and R2 each independently denote a hydrocarbon group, and each R3 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：US20220025110A1

公开(公告)日：2022-01-27

申请号：US17413984

申请日：2019-12-23

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Mitsutake SUEMATSU ,  Atsushi MOTEGI ,  Kentaro ISHIHARA ,  Katsushi NISHIMORI ,  Shinya IKEDA ,  Noriyuki KATO ,  Mitsuteru KONDO ,  Kensuke OSHIMA ,  Masahiro KANDA ,  Shoko SUZUKI ,  Tatsunobu OGATA

IPC分类号： C08G61/04 ,  C08K5/12 ,  C08K5/06 ,  G02B1/04

摘要： Provided is an optical resin composition for lenses that contains a resin having a structural unit represented by formula (1), and a binaphthalene compound and/or a binaphthalene compound oligomer having a structural unit represented by formula (2). A, p, K1, K2, Z, and q in formula (1) are as described in the present specification. R1-R10, a, and b in formula (2) are as described in the present specification.

公开(公告)号：US20230295373A1

公开(公告)日：2023-09-21

申请号：US18020531

申请日：2021-08-11

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Noriyuki KATO ,  Katsushi NISHIMORI ,  Shinya IKEDA ,  Atsushi MOTEGI ,  Shoko MURATA SUZUKI ,  Noriaki OCHI ,  Masahiro KANDA ,  Masayuki NAGAI ,  Takami MORISHITA ,  Shinichi IKEDA

IPC分类号： C08G64/06 ,  C08K5/13 ,  C08K5/527 ,  C08K5/103

CPC分类号： C08G64/06 ,  C08K5/13 ,  C08K5/527 ,  C08K5/103

摘要： A thermoplastic resin composition for an optical material is provided. The thermoplastic resin composition contains a compounding agent represented by general formula (1). (In general formula (1), R1 to R5 independently represent a hydrogen atom, or an alkyl group having 1 to 20 carbon atoms in total which may have a substituent; R6 to R9 independently represent a hydrogen atom, or an alkyl group having 1 to 20 carbon atoms in total which may have a substituent; and R10 represents a hydrogen atom, or an alkyl group having 1 to carbon atoms in total.)

公开(公告)号：US20220106483A1

公开(公告)日：2022-04-07

申请号：US17414407

申请日：2019-12-24

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Atsushi MOTEGI ,  Kentaro ISHIHARA ,  Katsushi NISHIMORI ,  Shinya IKEDA ,  Noriyuki KATO ,  Mitsuteru KONDO ,  Kensuke OSHIMA ,  Masahiro KANDA ,  Shoko SUZUKI ,  Tatsunobu OGATA ,  Mitsutake SUEMATSU

IPC分类号： C08L69/00 ,  C08G64/06 ,  C08L67/02 ,  C08K5/00 ,  G02B1/04 ,  G02B5/22

摘要： A thermoplastic resin composition that cuts visible light and has infrared light transmittance. A thermoplastic resin composition including a thermoplastic resin and a coloring material, wherein the refractive index at a wavelength of 894 nm is 1.60 or greater, and when the thickness of the thermoplastic resin composition is 1 mm, the maximum value of the transmittance of wavelengths of 380 nm-630 nm is greater than 0% and less than or equal to 1.00%, and the average transmittance of wavelengths of 840 nm-940 nm is greater than or equal to 80%.