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公开(公告)号：EP3882299A1
公开(公告)日：2021-09-22
申请号：EP19885245.1
申请日：2019-11-12
发明人： ABIKO, Yohei , DAITO, Aoi , SEKIGUCHI, Shinji
IPC分类号： C08G73/10
摘要： A polyimide resin including a structural unit A derived from a tetracarboxylic dianhydride and a structural unit B derived from diamine, wherein the structural unit A includes at least one structural unit selected from the group consisting of a structural unit (A-1) derived from a compound represented by Formula (a-1) below and a structural unit (A-2) derived from a compound represented by Formula (a-2) below, and the structural unit B includes a structural unit (B-1) derived from a compound represented by Formula (b-1) below and includes a structural unit (B-2) derived from a compound represented by Formula (b-2) below.
wherein X represents a single bond or an oxygen atom, and Ar represents a substituted or unsubstituted arylene group.
wherein Z 1 and Z 2 represent a divalent aliphatic group or a divalent aromatic group, R 1 and R 2 represent a monovalent aromatic group or a monovalent aliphatic group, R 3 and R 4 represent a monovalent aliphatic group, R 5 and R 6 represent a monovalent aliphatic group or a monovalent aromatic group, m and n represent an integer of 1 or greater, and a sum of m and n represents an integer from 2 to 1000. Here, at least one of R 1 and R 2 represents a monovalent aromatic group.-
公开(公告)号：EP3453733A1
公开(公告)日：2019-03-13
申请号：EP17792762.1
申请日：2017-05-01
发明人： ABIKO, Yohei , SUENAGA, Shuya , SEKIGUCHI, Shinji
摘要： The present invention is directed to a polyimide resin comprising a structural unit A derived from a tetracarboxylic dianhydride and a structural unit B derived from a diamine, wherein the structural unit A contains a structural unit (A-1) derived from 4,4'-(hexafluoroisopropylidene)diphthalic anhydride, and the structural unit B contains a structural unit derived from an aliphatic diamine, a polyimide resin composition comprising the polyimide resin and inorganic nanoparticles, and a polyimide film comprising the polyimide resin or the polyimide resin composition. Provided are a polyimide resin and a polyimide resin composition, each of which can form a film having not only a heat resistance, and colorlessness and transparency but also low water absorption properties, and a polyimide film.
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公开(公告)号：EP3489284A1
公开(公告)日：2019-05-29
申请号：EP17831042.1
申请日：2017-07-19
发明人： DAITO, Aoi , SEKIGUCHI, Shinji
摘要： A method for producing a polyimide resin film, including: a coating step of forming a coated film by coating a polyimide resin composition containing a polyimide resin, an antioxidant, and a solvent on a substrate; and a drying step of drying the coated film in air at 180°C or more, the antioxidant being a phenol-based antioxidant, and a content of the phenol-based antioxidant being 0.05 part by mass or more per 100 parts by mass of the polyimide resin.
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公开(公告)号：EP3456757A1
公开(公告)日：2019-03-20
申请号：EP17795935.0
申请日：2017-04-21
发明人： ABIKO, Yohei , SATO, Saeko , DAITO, Aoi , SEKIGUCHI, Shinji
摘要： A polyimide resin including a structural unit A derived from a tetracarboxylic dianhydride and a structural unit B derived from a diamine compound, wherein the structural unit A includes a structural unit (A-1) derived from a compound represented by the following formula (a-1), and the structural unit B includes a structural unit (B-1) derived from a compound represented by the following formula (b-1):
wherein m and n in the formula (b-1) each independently are an integer of 0 or 1.-
公开(公告)号：EP3453732A1
公开(公告)日：2019-03-13
申请号：EP17792754.8
申请日：2017-05-01
发明人： ABIKO, Yohei , SUENAGA, Shuya , SEKIGUCHI, Shinji
IPC分类号： C08G73/10
摘要： A polyimide resin including a structural unit A derived from a tetracarboxylic dianhydride and a structural unit B derived from a diamine compound, wherein the structural unit A includes at least one of a structural unit (A-1) derived from a compound represented by the following formula (a-1), a structural unit (A-2) derived from a compound represented by the following formula (a-2), and a structural unit (A-3) derived from a compound represented by the following formula (a-3), the structural unit B comprises a structural unit (B-1) derived from a compound represented by the following formula (b-1), a proportion of the structural unit (B-1) in the structural unit B is 60 mol% or more, and the polyimide resin has a glass transition temperature of higher than 410°C:
wherein X and Y in the formula (b-1) each independently are a hydrogen atom, a methyl group, a chlorine atom, or a fluorine atom.-
公开(公告)号：EP3441428A1
公开(公告)日：2019-02-13
申请号：EP17779058.1
申请日：2017-03-31
发明人： MUKASA, Kazuaki , ABIKO, Yohei , DAITO, Aoi , SEKIGUCHI, Shinji
摘要： Provided is a polyimide resin composition and a production method thereof, wherein the polyimide resin composition contains an alicyclic polyimide resin having a structural unit represented by the following general formula (1) and inorganic particles of at least one selected from the group consisting of titanium dioxide, barium titanate, and zirconium oxide, wherein the alicyclic polyimide resin has a glass transition temperature of 260°C or higher,
wherein R 1 represents a tetravalent alicyclic hydrocarbon group having a carbon number of from 4 to 22, and R 2 represents a divalent aliphatic hydrocarbon group having a carbon number of from 2 to 28 and/or a divalent aromatic hydrocarbon group having a carbon number of from 6 to 27.
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