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公开(公告)号：EP3922658A1
公开(公告)日：2021-12-15
申请号：EP20752110.5
申请日：2020-02-06
摘要： According to the present invention, there can be provided a polycarbonate resin composition comprising a structural unit represented by the following formula (1), a structural unit represented by the following formula (2), and a structural unit represented by the following general formula (3):
wherein, in the general formula (3), R 1 to R 4 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group containing 1 to 6 carbon atoms, or an aryl group containing 6 to 20 carbon atoms which may optionally comprise a heterocyclic atom selected from an oxygen atom, a nitrogen atom and a sulfur atom, an alkenyl group containing 2 to 6 carbon atoms, an alkoxy group containing 1 to 6 carbon atoms or an aralkyl group containing 7 to 17 carbon atoms;
p, q, r and s each independently represent an integer of 0 to 4; and
i represents an integer of 1 to 10, and ii represents an integer of 0 to 10.-
公开(公告)号：EP2927280B1
公开(公告)日：2018-08-15
申请号：EP13858925.4
申请日：2013-11-26
发明人： SUZUKI Shoko , TAJIMA Jun , NAGASHIMA Hiromitsu
CPC分类号： C08L69/00 , C08J3/005 , C08J3/093 , C08J2369/00 , C08K5/0041 , C08K5/42 , C08L2201/02 , C08L2201/08 , C08L2201/10 , C08L2205/025
摘要： The present invention provides an aromatic polycarbonate resin composition which is obtained by removing a solvent from a resin solution that is obtained by dissolving an aromatic polycarbonate resin-A that has a viscosity-average molecular weight of 3,000-25,000 and an aromatic polycarbonate resin-B that has a viscosity-average molecular weight of 50,000-90,000 into the solvent. This aromatic polycarbonate resin composition is characterized in that: the aromatic polycarbonate resin-A is contained in an amount of 99-50% by mass and the aromatic polycarbonate resin-B is contained in an amount of 1-50% by mass relative to the total mass of the aromatic polycarbonate resin-A and the aromatic polycarbonate resin-B; a plate-like molded article having thickness of 3.0 mm and molded from the aromatic polycarbonate resin composition has a haze value of 2% or less; and the number of unmelted polycarbonate pieces having a length of 100 µm or more and present within a region of 5 cm x 3 cm in the plate-like molded article is 10 or less.
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公开(公告)号：EP3904419A1
公开(公告)日：2021-11-03
申请号：EP19902145.2
申请日：2019-12-24
发明人： MOTEGI Atsushi , ISHIHARA Kentaro , NISHIMORI Katsushi , IKEDA Shinya , KATO Noriyuki , KONDO Mitsuteru , OSHIMA Kensuke , KANDA Masahiro , SUZUKI Shoko , OGATA Tatsunobu , SUEMATSU Mitsutake
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%.
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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
发明人： SHIRATAKE Munenori , ISHIHARA Kentaro , HIROSE Koji , IKEDA Shinya , KATO Noriyuki , KONDO Mitsuteru , SUZUKI Shoko , OSHIMA Kensuke , NAGAYAMA Shuya , KANDA Masahiro
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.
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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
发明人： KATO Noriyuki , KONDO Mitsuteru , ISHIHARA Kentaro , SHIRATAKE Munenori , HIROSE Koji , IKEDA Shinya , OSHIMA Kensuke , NAGAYAMA Shuya , SUZUKI Shoko
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).
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