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公开(公告)号：US20210008775A1
公开(公告)日：2021-01-14
申请号：US17041669
申请日：2019-02-22
发明人： Hitoshi IMAMURA , Hiroyuki HAMADA , Eri MUKAI , Masahiro KONDO
摘要： A molding material including a melt-fabricable fluororesin and having a metal content of 100 ng/1 g or less as measured by an ashing method. Also disclosed is a tube made of the molding material.
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公开(公告)号：US20190202151A1
公开(公告)日：2019-07-04
申请号：US16325327
申请日：2017-08-10
IPC分类号： B29D23/00 , C08L27/18 , C08L27/20 , C08F214/26 , C08F214/28 , B29C35/08
CPC分类号： B29D23/001 , B29C35/08 , B29C2035/0877 , B29K2027/18 , C08F214/262 , C08F214/282 , C08J5/00 , C08J7/00 , C08L27/18 , C08L27/20 , C08L2203/18
摘要： The invention provides a molded article containing a specific fluororesin and having excellent hydrophilicity. The molded article containing the fluororesin has a melt flow rate of 1.00 g/10 min or lower and a water contact angle of 90° or smaller. The fluororesin contains at least one copolymer selected from the group consisting of a copolymer containing a tetrafluoroethylene unit and a perfluoro(alkylvinylether) unit and a copolymer containing a tetrafluoroethylene unit and a hexafluoropropylene unit.
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公开(公告)号：US20180265654A1
公开(公告)日：2018-09-20
申请号：US15985567
申请日：2018-05-21
发明人： Hitoshi IMAMURA , Tatsuya FUNAOKA , Hideki KONO
IPC分类号： C08J3/28 , C08F214/26
CPC分类号： C08J3/28 , C08F214/262 , C08J7/123 , C08J2327/18
摘要： The present invention aims to provide a method for producing a modified molded article that has favorable appearance, high breaking strength, and excellent abrasion resistance, as well as excellently low permeability to nitrogen gas and hydrochloric acid. The method for producing a modified molded article of the present invention includes molding a fluororesin to provide a molded article and irradiating the molded article with radiation at an irradiation dose of lower than 100 kGy at 50° C. to 200° C. to provide a modified molded article.
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公开(公告)号：US20220223316A1
公开(公告)日：2022-07-14
申请号：US17605635
申请日：2020-04-17
发明人： Hitoshi IMAMURA , Hiroaki WADA , Yasuyuki YAMAGUCHI , Takeshi KOZUKI , Yuuki KUWAJIMA , Manabu FUJISAWA , Masamichi SUKEGAWA
摘要： A magnet wire including a conductor and an insulating coating formed on an outer periphery of the conductor. The insulating coating contains a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit. The copolymer has a melt flow rate of 10 to 60 g/10 min, and the copolymer has a fluoroalkyl vinyl ether unit content of 6.2 to 8.0% by mass based on a total content of monomer units.
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公开(公告)号：US20220195088A1
公开(公告)日：2022-06-23
申请号：US17599086
申请日：2020-04-03
发明人： Hitoshi IMAMURA , Takahisa AOYAMA , Hayato TSUDA , Tadaharu ISAKA
IPC分类号： C08F214/26 , H01M50/193 , H01M50/426
摘要： A member to be compressed for an electrochemical device, including a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, the copolymer having a content of the fluoroalkyl vinyl ether unit based on all the monomer units of the copolymer of 4.3% by mass or more and less than 5.5% by mass, and having a melt flow rate of 10 to 23 g/10 min.
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公开(公告)号：US20220170573A1
公开(公告)日：2022-06-02
申请号：US17673374
申请日：2022-02-16
发明人： Hitoshi IMAMURA , Hiroyuki HAMADA , Eri MUKAI , Yuuki KUWAJIMA , Manabu FUJISAWA
摘要： Provided is a tube comprising a tetrafluoroethylene/fluoroalkyl vinyl ether copolymer, wherein the tube inner surface has a surface roughness Ra of 5 nm or less measured by atomic force microscopy (AFM) with an evaluation length set to 3 μm, and the tube has an amount of metals eluted from the tube inner surface of 0.30 ng/cm2 or less.
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公开(公告)号：US20220088648A1
公开(公告)日：2022-03-24
申请号：US17296775
申请日：2019-11-26
发明人： Hitoshi IMAMURA , Eri MUKAI , Masahiro KONDO
IPC分类号： B08B9/032 , B08B3/04 , C08F214/26 , C08K5/05
摘要： A method for producing a tube for a chemical solution pipe composed of a cleaned fluororesin molded article, the method including cleaning a tube-shaped fluororesin molded article with a chemical solution; and cleaning the tube-shaped fluororesin molded article with water. The cleaning with water is performed after the cleaning with a chemical solution, and the chemical solution is an alcohol or an aqueous alcohol solution.
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公开(公告)号：US20220195089A1
公开(公告)日：2022-06-23
申请号：US17603026
申请日：2020-02-28
发明人： Hitoshi IMAMURA , Eri MUKAI
IPC分类号： C08F214/26 , H01L21/67
摘要： A wafer cup including a copolymer containing a tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit. A water contact angle of at least a part of an inner surface of the wafer cup is 80 degrees or less.
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公开(公告)号：US20210269568A1
公开(公告)日：2021-09-02
申请号：US17255343
申请日：2019-06-14
发明人： Hitoshi IMAMURA , Eri MUKAI , Yuuki KUWAJIMA , Masahiro KONDO
摘要： A molded article containing a copolymer including a tetrafluoroethylene unit and a perfluoro(alkyl vinyl ether) unit, wherein a surface roughness Ra of the molded article is 0.20 μm or less, and a water contact angle of the molded article is 80 degrees or less. Also disclosed is a method for producing the molded article.
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公开(公告)号：US20170254450A1
公开(公告)日：2017-09-07
申请号：US15507068
申请日：2015-09-02
发明人： Hitoshi IMAMURA , Jihong LIU , Hideki KONO
CPC分类号： F16L19/04 , F16L19/043 , F16L19/045 , F16L33/22 , F16L47/04
摘要： A joint is connected to a tube and includes a joint body, nut, and ring. The joint body has a tube coupling part and a main body thread part. The nut has a nut thread part and a constricted diameter part. The ring is arranged in a space radially inward of the nut thread part. The ring abuts an abutted part of the nut. The ring has a Young's modulus greater than the tube. The ring has a curved surface part at least at a radially inward portion of the ring axially on the joint body side, the curved surface part bulging radially inward of the ring and axially toward the joint body side. A maximum thickness of the ring in a radial direction is defined as 2r, an axial length of the curved surface part of the ring is defined as h, and α=h/r being 0.5 to 1.2.
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