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1. 发明申请

US20210047463A1 POLYCARBONATE RESIN AND METHOD FOR MANUFACTURING SAME 有权
公开(公告)号：US20210047463A1
公开(公告)日：2021-02-18
申请号：US16969365
申请日：2019-02-22
申请人： TEIJIN LIMITED
发明人： Hideyuki TSUNEMORI , Kenta IMAZATO , Takeshi FURUNO , Katsuhiro YAMANAKA
IPC分类号： C08G64/02 , C08G64/30
摘要： A polycarbonate resin containing a structural unit originating from a dihydroxy compound represented by formula (1), having a boric-acid content of 100 ppm or lower and/or a tertiary-amine content of 1000 ppm by weight or lower, and having a terminal phenyl group originating from a diester carbonate represented by formula (2), wherein the concentration of the terminal phenyl group is equal to or greater than 30 μeq/g. In formula (1), R1, R2, R3, and R4 each independently represent a hydrogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C3-C20 cycloalkyl group, a C6-C20 cycloalkoxy group, a C6-C10 aryl group, a C7-C20 aralkyl group, a C6-C10 aryloxy group, a C7-C20 aralkyloxy group, or a halogen atom, and the cyclobutane ring indicates a cis-trans isomer mixture, a cis isomer alone, or a trans isomer alone. In formula (2), R5 and R6 each independently represent a substituted or non-substituted aromatic group.

2. 发明申请

US20180312688A1 POLYCARBONATE RESIN HAVING AMINE RESISTANCE 审中-公开
公开(公告)号：US20180312688A1
公开(公告)日：2018-11-01
申请号：US15770898
申请日：2016-10-24
申请人： TEIJIN LIMITED
发明人： Hideyuki TSUNEMORI , Katsuhiro YAMANAKA
IPC分类号： C08L69/00
CPC分类号： C08G64/04 , C08G64/06 , C08G64/081 , C08L69/00
摘要： A polycarbonate copolymer or copolymerized polycarbonate blend having excellent amine resistance, which has, as main constituent units, (A) constituent units each represented by the following formula (1): wherein, in the formula (1), each of R1 and R2 is independently a hydrogen atom, a hydrocarbon group having 1 to 9 carbon atoms and optionally containing an aromatic group, or a halogen atom, (B) constituent units each represented by the following formula (2): wherein, in the formula (2), each of R3 and R4 is independently an alkyl group having 1 to 6 carbon atoms or a halogen atom, and X is a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygen atom, and (C) constituent units each represented by the following formula (3): wherein, in the formula (3), W represents a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygen atom, wherein the amount of the constituent units (A) is 5 to 15 mol %, the amount of the constituent units (B) is 20 to 60 mol %, and the amount of the constituent units (C) is 25 to 75 mol %, based on the mole of the all constituent units, and the polycarbonate copolymer or copolymerized polycarbonate blend is excellent in scratch resistance, impact resistance, heat resistance, and amine resistance.

3. 发明申请

US20230006341A1 CONDUCTIVE FILM FOR ANTENNAS, AND ANTENNA 有权
公开(公告)号：US20230006341A1
公开(公告)日：2023-01-05
申请号：US17768974
申请日：2020-10-06
申请人： TEIJIN LIMITED
发明人： Hideyuki TSUNEMORI , Hiroshi OKAMOTO , Tomoya NAKANISHI
IPC分类号： H01Q1/38 , H01Q13/08 , B32B15/09 , B32B15/20
摘要： Provided is a conductive film for antennas, in which a conducting film and a substrate made of a polycarbonate resin material containing a polycarbonate resin are laminated, and the polycarbonate resin contains, as main constituent units, a unit (A) represented by the following formula (1) and/or a unit (B) represented by the following formula (2). The conductive film for antennas has low dielectric characteristics and bendability, can form an antenna with a low transmission loss, and has excellent adhesion to the conducting film. (In the formula (1), R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms or a halogen atom, and R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom.) (In the formula (2), R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms or a halogen atom, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom, R3 represents a halogen atom, an alkyl group having 1 to 20 carbon atoms, or a cycloalkyl group having 3 to 20 carbon atoms, and n represents an integer of 0 to 10.)

4. 发明申请

US20200283571A1 POLYCARBONATE COPOLYMER 审中-公开
公开(公告)号：US20200283571A1
公开(公告)日：2020-09-10
申请号：US16628728
申请日：2018-06-20
申请人： TEIJIN LIMITED
发明人： Hideyuki TSUNEMORI , Kenta IMAZATO , Katsuhiro YAMANAKA
IPC分类号： C08G64/06
摘要： The present invention provides a polycarbonate copolymer having low specific gravity and high surface hardness. The polycarbonate copolymer of the present invention contains a unit (A) represented by the following formula (1-1) or (1-2) and a unit (B) represented by the following formula (3); wherein in formula (1-1), R1 and R2 respectively and independently represent a hydrogen atom, hydrocarbon group having 1 to 10 carbon atoms that may contain an aromatic group, or halogen atom, and Y represents a divalent organic residue comprised of the following formula (2); in formula (2), Cm represents a cycloalkylene group, m represents an integer of 3 to 20, R3 represents a hydrogen atom, halogen atom, alkyl group having 1 to 20 carbon atoms or cycloalkyl group having 3 to 20 carbon atoms, and n represents an integer of 1 to 10; in formula (1-2), R1′ and R2′ respectively and independently represent a hydrogen atom, hydrocarbon group having 1 to 10 carbon atoms that may contain an aromatic group or a halogen atom, and W represents a single bond, carbon atom, oxygen atom or sulfur atom; and in formula (3), R4, R5, R6 and R7 respectively and independently represent a hydrogen atom, halogen atom, alkyl group having 1 to 20 carbon atoms or cycloalkyl group having 3 to 20 carbon atoms:

5. 发明申请

US20190390006A1 POLYCARBONATE COPOLYMER 审中-公开
公开(公告)号：US20190390006A1
公开(公告)日：2019-12-26
申请号：US16480019
申请日：2017-12-22
申请人： TEIJIN LIMITED
发明人： Hideyuki TSUNEMORI , Katsuhiro YAMANAKA
IPC分类号： C08G64/06 , C08G64/24 , C08K5/13 , C08J5/18
摘要： The purpose of the present invention is to provide a polycarbonate resin which has excellent scratch resistance, shock resistance, thermal resistance, and amine resistance. The present invention is a polycarbonate copolymer comprising, as main structural units: (A) a structural unit (A) represented by formula (1) [formula 1] (in formula (1), R1 and R2 are each independently a hydrogen atom, a hydrocarbon group having 1 to 9 carbon atoms which may include an aromatic group, or a halogen atom); (B) a structural unit (B) represented by formula (2) [formula 2] (in formula (2), R3 and R4 are each independently an alkyl group having 1 to 6 carbon atoms or a halogen atom. X is a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkanediyl group, a sulfur atom, or an oxygen atom); and (C) a structural unit (C) represented by formula (3) [formula 3] (in formula (3), W is a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkanediyl group, a sulfur atom, or an oxygen atom). The proportions of the structural units (A), (B), and (C) to the total structural units are, respectively, 5 to 25 mol %, 35 to 60 mol %, and 30 to 50 mol %.

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