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1.发明公开
公开(公告)号：EP4299613A1
公开(公告)日：2024-01-03
申请号：EP22759283.9
申请日：2022-01-31
发明人： ISAKA, Tadaharu , ZENKE, Yumi , YAMAMOTO, Yukari , TSUDA, Hayato
摘要： There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.14 to 2.75 mol% with respect to the whole of the monomer units, a melt flow rate at 372°C of 3.0 to 4.2 g/10 min, and the number of functional groups of 20 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4299607A1
公开(公告)日：2024-01-03
申请号：EP22759268.0
申请日：2022-01-31
IPC分类号： C08F8/00 , B29C45/00 , B29C45/26 , C08F214/18 , C08F214/26 , C08F216/14
摘要： There is provided an injection molded article obtained by injection molding a copolymer using a mold provided with a gate, wherein the copolymer contains tetrafluoroethylene (TFE) unit and a fluoro(alkyl vinyl ether) (FAVE) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 5.2 to 6.3% by mass with respect to the whole of the monomer units, the melt flow rate at 372°C of the copolymer is 19.0 to 35.0 g/10 min, the number of functional groups of the copolymer is 50 or less per 10 6 main-chain carbon atoms, and the injection molded article has a gate section corresponding to the gate of the mold, and the ratio of the maximum flow length (a) from the gate section of the injection molded article to the average value (b) of the product thickness on the maximum flow length, ((a)/(b)), is 80 to 200.
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公开(公告)号：EP4299602A1
公开(公告)日：2024-01-03
申请号：EP22759263.1
申请日：2022-01-31
IPC分类号： C08F8/00 , C08F214/26 , H01B7/02
摘要： There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.26 to 2.75 mol% with respect to the whole of the monomer units, a melt flow rate at 372°C of 4.0 to 11.0 g/10 min, and the number of functional groups of 50 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4024575A1
公开(公告)日：2022-07-06
申请号：EP20857574.6
申请日：2020-08-26
IPC分类号： H01M50/183 , C08F214/26 , C08F216/14 , F16J15/10 , H01G11/06 , H01G11/58 , H01G11/80 , H01M50/572 , H01M6/16 , H01M10/0566
摘要： Provided is a member for a non-aqueous electrolyte battery containing a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, in which the number of functional groups per 10 6 carbon atoms of a main chain of the copolymer is 100 or less, and a melt flow rate of the copolymer is 20 to 30 g/10 minutes.
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公开(公告)号：EP4299633A1
公开(公告)日：2024-01-03
申请号：EP22759281.3
申请日：2022-01-31
发明人： ISAKA, Tadaharu , ZENKE, Yumi , YAMAMOTO, Yukari , TSUDA, Hayato
摘要： There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.5 to 4.2% by mass with respect to the whole of the monomer units, a melt flow rate at 372°C of 18.0 to 22.0 g/10 min, and the number of functional groups of 50 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4299603A1
公开(公告)日：2024-01-03
申请号：EP22759264.9
申请日：2022-01-31
IPC分类号： C08F8/00 , C08F214/26 , H01B7/02
摘要： There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.51 to 2.92 mol% with respect to the whole of the monomer units, a melt flow rate at 372°C of 19.0 to 33.0 g/10 min, and the number of functional groups of 50 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4299601A1
公开(公告)日：2024-01-03
申请号：EP22759262.3
申请日：2022-01-31
IPC分类号： C08F8/00 , C08F214/26 , H01B7/02
摘要： There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.4 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372°C of 7.5 to 11.0 g/10 min, and the number of functional groups of 40 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4299600A1
公开(公告)日：2024-01-03
申请号：EP22759261.5
申请日：2022-01-31
IPC分类号： C08F8/00 , C08F214/26 , H01B7/02
摘要： There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.9 to 4.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372°C of 4.0 to 9.0 g/10 min, and the number of functional groups of 40 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4223793A1
公开(公告)日：2023-08-09
申请号：EP21875829.0
申请日：2021-09-30
IPC分类号： C08F8/00 , C08F214/26 , H01B3/44 , H01B7/02
摘要： There is provided a copolymer containing tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro(propyl vinyl ether) unit of 2.8 to 3.5% by mass with respect to the whole of the monomer units, a melt flow rate of 31 to 38 g/10 min, and the number of functional groups of 50 or less per 10 6 main-chain carbon atoms.
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公开(公告)号：EP4212762A1
公开(公告)日：2023-07-19
申请号：EP21866317.7
申请日：2021-06-14
发明人： USHIJIMA, Takeru , YANAGIGUCHI, Tomihiko , AOYAMA, Takahisa , LIU, Jihong , SUKEGAWA, Masamichi , TSUDA, Hayato
IPC分类号： F16J15/10 , H01M50/107 , H01M50/184 , H01M50/19
摘要： A sealing member that is unlikely to break while an end portion thereof is pressure-bonded is provided.
The sealing member is one used for a cylindrical lithium-ion battery, wherein the sealing member is used by being interposed between a bottom-closed cylindrical case and a cap, is made of perfluoropolymer, and has dimensions that meet the following relational expressions:
when an axial distance from a cap upper surface to a leading end portion in a case is defined as HC,
an axial distance from the cap upper surface to a leading end portion in the sealing member is defined as HG,
a thickness of the sealing member is defined as TG,
a value of TG divided by HG is defined as X (=TG/HG), and
a value of HG divided by HC is defined as Y (=HG/HC), X > 0.800 TG − 0.324 Y − 0.778 TG + 1.670 Y > 0.594 X 2 − 1.176 X + 0.913
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