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公开(公告)号：US10754065B2
公开(公告)日：2020-08-25
申请号：US15294055
申请日：2016-10-14
发明人： Shingo Namiki , Yuuichi Hirami , Hisatoshi Uehara , Hiroyuki Hayashi , Takashi Shimizu , Hiroshi Sumimura , Nao Murakami
摘要： An object of the present invention is to provide a retardation film excellent in various properties such as optical properties, heat resistance, mechanical properties, and reliability. The present invention relates to a retardation film containing a thermoplastic resin and composed of a single layer, in which the retardation film has a value of wavelength dispersion that is a ratio of retardations at a wavelength of 450 nm and at a wavelength of 550 nm being 0.75 or more and 0.92 or less; a birefringence at a wavelength of 550 nm and the wavelength dispersion satisfy a relationship of Δn≥0.0140×(R450/R550)−0.0082; and a photoelastic coefficient is 25×10−12 Pa−1 or less.
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公开(公告)号：US10670773B2
公开(公告)日：2020-06-02
申请号：US15294158
申请日：2016-10-14
发明人： Shingo Namiki , Yuuichi Hirami , Hisatoshi Uehara , Hiroyuki Hayashi , Takashi Shimizu , Hiroshi Sumimura , Nao Murakami
摘要： The retardation film of the present invention contains a thermoplastic resin and is constituted of a single layer. A value of wavelength dispersion (R450/R550) that is a ratio of a retardation R450 at a wavelength of 450 nm and a retardation R550 at a wavelength of 550 nm is 0.70 or more and 0.85 or less; and a photoelastic coefficient is 14×10−12 Pa−1 or less.
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公开(公告)号：US12065541B2
公开(公告)日：2024-08-20
申请号：US17456259
申请日：2021-11-23
发明人： Shingo Namiki , Yuuichi Hirami , Koji Nakamura , Hiroyuki Hayashi , Tomoko Maeda , Kenichi Satake
IPC分类号： C08G63/672 , C07D215/14 , C08G63/81 , C08G63/83 , C08J5/18 , G02B5/30
CPC分类号： C08G63/672 , C07D215/14 , C08G63/81 , C08G63/83 , C08J5/18 , G02B5/3025 , C08J2367/02
摘要： A thermoplastic resin including a structural unit of formula (1):
wherein A1 to A8 are each independently ═CH— or ═N—, and at least one of A1 to A8 is ═N—. R1 to R8 are each independently a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, or the like. At least two adjacent groups out of R1 to R8 are optionally bonded to each other to form a ring. R9 and R10 are each independently a direct bond or an optionally substituted alkylene group having 1 to 20 carbon atoms. X is an oxygen atom, a carbonyl group, or an optionally substituted amino group, and n is an integer of 1 to 5. A retardation film, a circularly polarizing plate containing the thermoplastic resin are disclosed.-
4.发明授权Resin composition, stretched film, circularly polarizing plate, and image display device 有权树脂组合物，拉伸膜，圆偏振片和图像显示装置公开(公告)号：US09518150B2
公开(公告)日：2016-12-13
申请号：US14685982
申请日：2015-04-14
发明人： Hisatoshi Uehara , Hiroyuki Hayashi , Naoko Sumitani , Haruhiko Kusaka , Shingo Namiki , Yuuichi Hirami
IPC分类号： C08G64/30 , B29C55/04 , C07C33/36 , C07C69/616 , C08J5/18 , C08G64/16 , C07C43/23 , C07C67/00 , G02B1/08 , G02B5/30 , C08G64/06 , B29K227/12
CPC分类号： C08G64/305 , B29C55/04 , B29K2227/12 , B29K2995/0034 , C07C33/36 , C07C43/23 , C07C67/00 , C07C69/616 , C07C2603/18 , C08G64/16 , C08G64/302 , C08J5/18 , C08J2369/00 , G02B1/08 , G02B5/3083
摘要： The invention relates to a resin composition which comprises a polymer having a divalent oligofluorene as a repeating unit therein, wherein the divalent oligofluorene contains at least two fluorene units optionally having a substituent, and the 9-positioned carbon atoms of the fluorene units bond to each other via a direct bond or via an alkylene group optionally having a substituent, an arylene group optionally having a substituent, or an aralkylene group optionally having a substituent, and a ratio of a retardation measured at a wavelength of 450 nm (Re450) to a retardation measured at a wavelength of 550 nm (Re550) satisfies the following formula (2): Re450/Re550≦1.0.
摘要翻译： 本发明涉及一种树脂组合物，其包含其中具有二价低聚芴作为重复单元的聚合物，其中二价低聚芴含有至少两个任选具有取代基的芴单元，并且芴单元的9位碳原子键合到每个 其它通过直接键合或经由任选具有取代基的亚烷基，任选具有取代基的亚芳基或任选具有取代基的芳亚烷基，以及在波长450nm（Re450）测量的延迟与 在550nm波长处测得的延迟（Re550）满足下式（2）：Re450 /Re550≤1.0。
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公开(公告)号：US11873370B2
公开(公告)日：2024-01-16
申请号：US16972880
申请日：2019-06-10
发明人： Shingo Namiki , Yuuichi Hirami , Tomoaki Kanemasa , Taiki Shimada , Masato Ando , Akira Kosuge , Shigeki Ohta , Yuuichirou Kutsunugi , Asami Kakiuchi
CPC分类号： C08G64/0208 , B32B27/08 , B32B27/365 , C08G64/06 , C08G64/305 , C08L33/08 , B32B2250/02 , B32B2250/03 , B32B2250/04 , B32B2307/732 , B32B2333/08 , B32B2369/00 , B32B2605/08 , C08L2203/30 , C08L2205/025 , C08L2205/035
摘要： A polycarbonate resin composition may include a first polycarbonate resin and a second polycarbonate resin, which a molded article may include, and a multilayer body may have a resin layer A including the polycarbonate resin composition and a resin layer B including a resin different from the resin layer A. The first polycarbonate resin may include 40% by weight or more of a structural unit of formula (1)
The second polycarbonate resin may include less than 40% by weight of the structural unit of formula (1). The weight ratio of the first polycarbonate resin to the second polycarbonate resin, the first polycarbonate resin/the second polycarbonate resin, may be in a range of from 55/45 to 99/1. The polycarbonate resin composition may have two or more glass transition temperatures.-
公开(公告)号：US10732323B2
公开(公告)日：2020-08-04
申请号：US15294040
申请日：2016-10-14
发明人： Shingo Namiki , Yuuichi Hirami , Hisatoshi Uehara , Hiroyuki Hayashi , Takashi Shimizu , Hiroshi Sumimura , Nao Murakami
摘要： The retardation film of the present invention contains a resin having positive refractive index anisotropy and containing at least one bonding group of a carbonate bond and an ester bond and one or more structural units selected from the group consisting of a structural unit represented by the general formula (1) and a structural unit represented by the general formula (2), in which the value of wavelength dispersion (R450/R550) as a ratio of retardation R450 at a wavelength of 450 nm to retardation R550 at a wavelength of 550 nm is more than 0.5 and less than 1.0: (in formula (1) and formula (2), definitions of R1 to R9 are the same as in the description).
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公开(公告)号：US20190079231A1
公开(公告)日：2019-03-14
申请号：US16072771
申请日：2017-01-31
IPC分类号： G02B5/30 , G02F1/1333 , C08G63/64
摘要： There is provided an optical laminate that has a conductive layer directly formed on a retardation layer, is extremely thin and has an excellent antireflection function, and further, can realize excellent display characteristics even when it is applied to a bent portion of an image display apparatus. An optical laminate according to an embodiment of the present invention includes: a polarizer; a retardation layer; and a conductive layer, which is directly formed on the retardation layer. The retardation layer has an in-plane retardation Re(550) being from 100 nm to 180 nm and satisfying a relationship of Re(450)
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公开(公告)号：US10081707B2
公开(公告)日：2018-09-25
申请号：US15476227
申请日：2017-03-31
发明人： Shingo Namiki , Yuuichi Hirami
CPC分类号： C08G64/1608 , C08G64/307 , G02B1/04 , G02B1/08 , G02B5/3083 , C08L69/00
摘要： The object of the present invention is to provide a polycarbonate resin which is excellent in various properties, such as heat resistance, optical properties, melt processability, etc., and an optical film composed of the same and the present invention relates to a polycarbonate resin containing at least a structural unit represented by the following formula (1) and a structural unit represented by the following formula (2): wherein in the formula (1), R1 to R6 each independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group, an alkoxy group having 1 to 12 carbon atoms, or a halogen atom.
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