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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
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Hitoshi IMAMURA , Eri MUKAI , Yuuki KUWAJIMA , Masahiro KONDO
Abstract: 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：US20210154984A1
公开(公告)日：2021-05-27
申请号：US16965341
申请日：2019-01-09
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuuki KUWAJIMA , Yukinori KAMIYA , Takeshi INABA
Abstract: A laminate including: a fluororesin layer (A) containing a fluororesin having a fuel permeability coefficient of 2.0 g·mm/m2/day or lower; and a fluorine-free resin layer (B) containing a fluorine-free resin having a SP value of 11.5 to 13.5 (cal/cm3)1/2 and a fuel permeability coefficient of 1.0 g·mm/m2/day or lower.
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Patent Agency Ranking
公开(公告)号：US20200298542A1
公开(公告)日：2020-09-24
申请号：US16607274
申请日：2018-03-07
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuuki KUWAJIMA , Hayato TSUDA
Abstract: A sheet containing a carbon fiber and a fluororesin layer disposed around a carbon monofilament constituting the carbon fiber. A fluororesin constituting the fluororesin layer is polyvinylidene fluoride. Further, the sheet has a tensile strength of 400 MPa or higher. Also disclosed is a laminate including a first layer and a second layer that is disposed on the first layer and that includes the sheet; a pipe including the laminate; a riser tube including the pipe and a flowline including the pipe.
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公开(公告)号：US20190056048A1
公开(公告)日：2019-02-21
申请号：US16100307
申请日：2018-08-10
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuuki KUWAJIMA , Takeshi INABA
Abstract: The invention provides a laminate having high elastic modulus retention even at high temperature and having moderate hardness. The laminate includes a layer (A) formed from a fluororesin and a layer (B) formed from a polyamide resin. The fluororesin is a copolymer containing a copolymerized unit of tetrafluoroethylene and a copolymerized unit of vinylidene fluoride, and has a storage elastic modulus (E′) of 60 to 400 MPa measured by dynamic mechanical analysis at 170° C.
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公开(公告)号：US20180223089A1
公开(公告)日：2018-08-09
申请号：US15742943
申请日：2016-07-08
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Kazuki HOSODA , Kenji ICHIKAWA , Kazunobu UCHIDA , Yuuko IWAMATSU , Yuuki KUWAJIMA , Hayato TSUDA , Toshiaki MASUI
CPC classification number: C08L27/16 , C08F6/00 , C08F8/32 , C08F14/22 , C08F214/22 , C08F214/26 , C08F2800/10 , C08F2810/50 , C08J5/04 , C08J2327/16 , C08J2327/18 , C08L27/18 , E21B17/01
Abstract: The invention provides a fluororesin that is less likely to suffer blistering or cracking even when rapidly decompressed from a high-temperature and high-pressure state. The fluororesin contains a vinylidene fluoride unit. The vinylidene fluoride unit represents 10.0 to 100 mol % of all the monomer units constituting the fluororesin. The fluororesin exhibits a weight loss of 0.1% or less after heated at 300° C. for two hours.
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公开(公告)号：US20170043560A1
公开(公告)日：2017-02-16
申请号：US15304344
申请日：2015-04-15
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuuki KUWAJIMA , Eisaku SUMINO , Takeshi INABA , Tsuyoshi NOGUCHI
CPC classification number: B32B25/08 , B32B1/08 , B32B25/042 , B32B25/14 , B32B27/304 , B32B27/322 , B32B2597/00 , F16L11/04 , F16L11/12
Abstract: The present invention aims to provide a laminate in which a fluororesin layer and a fluororubber layer are firmly bonded. The present invention relates to a laminate including: a fluororubber layer (A); and a fluororesin layer (B) stacked on the fluororubber layer (A), the fluororubber layer (A) being formed from a fluororubber composition, the fluororubber composition containing a fluororubber, a low molecular weight polytetrafluoroethylene, and a multifunctional compound, the amount of the multifunctional compound being 5 parts by mass or more relative to 100 parts by mass of the fluororubber.
Abstract translation: 本发明的目的在于提供一种层压体，其中氟树脂层和氟橡胶层牢固地结合。 本发明涉及一种层压体，包括：氟橡胶层（A）; 和层叠在氟橡胶层（A）上的氟树脂层（B），氟橡胶层（A）由氟橡胶组合物形成，所述氟橡胶组合物含有氟橡胶，低分子量聚四氟乙烯和多官能化合物， 多官能化合物相对于100质量份的氟橡胶为5质量份以上。
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公开(公告)号：US20160288461A1
公开(公告)日：2016-10-06
申请号：US15034214
申请日：2014-11-12
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuuki KUWAJIMA , Shoji FUKUOKA , Kozue KOMAZAWA , Mayuko TAEDA , Junpei TERADA
Abstract: The present invention aims to provide a laminate in which a fluororesin layer and a fluororubber layer are firmly bonded even when the fluororesin layer contains a fluororesin having excellently low fuel permeability. The present invention relates to a laminate including a fluororubber layer (A) and a fluororesin layer (B) stacked on the fluororubber layer (A). The fluororubber layer (A) is a layer formed from a fluororubber composition. The fluororubber composition contains a fluororubber (a1) and a basic multifunctional compound having at least two nitrogen atoms in the molecule with a distance between the nitrogen atoms in the molecule of 5.70 Å or greater. The fluororubber (a1) has an absorption coefficient at 1720 cm−1, determined after being brought into contact with triethyl amine, of 0.35 or lower. The fluororesin layer (B) is formed from a fluororesin (b1) having a fuel permeability coefficient of 2.0 g·mm/m2/day or lower.
Abstract translation: 本发明的目的在于提供一种即使在氟树脂层含有具有优异的低燃料透过性的氟树脂的情况下也能够使氟树脂层和氟橡胶层牢固结合的层压体。 本发明涉及层叠在氟橡胶层（A）上的氟橡胶层（A）和氟树脂层（B）的层叠体。 氟橡胶层（A）是由氟橡胶组合物形成的层。 氟橡胶组合物含有氟橡胶（a1）和分子中具有至少两个氮原子的碱性多官能化合物，分子中的氮原子之间的距离为5.70以上。 氟橡胶（a1）在与三乙胺接触后测定的在1720cm -1处的吸收系数为0.35以下。 氟树脂层（B）由燃料透过系数为2.0g·mm / m 2 /天以下的氟树脂（b1）形成。
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