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    MANUFACTURING METHOD FOR HYDROFLUOROOLEFIN OR FLUOROOLEFIN
    2.
    发明申请
    MANUFACTURING METHOD FOR HYDROFLUOROOLEFIN OR FLUOROOLEFIN 有权

    公开(公告)号：US20230014347A1

    公开(公告)日：2023-01-19

    申请号：US17895529

    申请日：2022-08-25

    Applicant: DAIKIN INDUSTRIES, LTD. ,  OSAKA UNIVERSITY

    Inventor： Yuuta HASUMOTO ,  Tatsuya TAKAKUWA ,  Osamu YAMAMOTO ,  Hideki NAKAYA ,  Masao NOUMI ,  Kazuyuki SATOU ,  Kohei YAMANOI ,  Akihiro OSHIMA

    IPC: C07C17/278

    Abstract: This disclosure provides a method for producing a hydrofluoroolefin (HFO) or fluoroolefin (FO), which is a target compound, with high selectivity, without requiring a high temperature and a catalyst in a synthesis process of the target compound. Specifically, the present disclosure provides a method for producing a hydrofluoroolefin or fluoroolefin having two, three, or four carbon atoms, comprising irradiating at least one starting material compound selected from the group consisting of hydrofluorocarbons having one or two carbon atoms and hydrofluoroolefin As having two or three carbon atoms with ionizing radiation and/or an ultraviolet ray having a wavelength of 300 nm or less, with the proviso that when the at least one starting material compound is the hydrofluoroolefin A, the resulting hydrofluoroolefin is different from the hydrofluoroolefin A.

    MICROSTRUCTURAL MATERIALS AND FABRICATION METHOD THEREOF
    3.
    发明申请
    MICROSTRUCTURAL MATERIALS AND FABRICATION METHOD THEREOF 审中-公开
    微结构材料及其制造方法

    公开(公告)号：US20160193756A1

    公开(公告)日：2016-07-07

    申请号：US15072640

    申请日：2016-03-17

    Applicant: DAIKIN INDUSTRIES, LTD.

    Inventor： Akihiro OSHIMA ,  Seiichi TAGAWA ,  Masakazu WASHIO ,  Tomoko OYAMA ,  Tomohiro TAKAHASHI ,  Satoshi OKUBO ,  Akinobu KOBAYASHI ,  Naotsugu NAGASAWA ,  Mitsumasa TAGUCHI

    IPC: B29C35/08 ,  B29C39/38 ,  B29C39/02

    CPC classification number: B29C35/0866 ,  B29C39/026 ,  B29C39/38 ,  B29C2035/0844 ,  B29C2035/085 ,  B29C2035/0872 ,  B29C2035/0877 ,  B29C2035/0883 ,  B29K2027/18 ,  B29L2031/767 ,  B81C99/0085 ,  B82Y10/00 ,  B82Y40/00 ,  G03F7/0002 ,  Y10T428/24479

    Abstract: There are provided a microstructural material allowing a concavo-convex pattern of a mold to be imprinted thereon by hardening a pattern formative layer through an unprecedented method, and a fabrication method thereof. A PTFE dispersion liquid is used in a pattern formative layer 2a forming an imprint section 2, thereby allowing such pattern formative layer 2a formed on a concavo-convex pattern of a mold 5 to be hardened when irradiated with an ionizing radiation. Accordingly, the fabrication method of a microstructural material 1 of the present invention employs an imprinting method allowing the pattern formative layer 2a to be hardened through an ionizing radiation R, which is completely different from a thermal imprinting and an optical imprinting. That is, the pattern formative layer 2a can be hardened, and the concavo-convex pattern of the mold 5 can thus be imprinted thereon, through an unprecedented method.

    Abstract translation: 提供了通过前所未有的方法硬化图案形成层，允许模具的凹凸图案印刷在其上的微结构材料及其制造方法。 在形成压印部分2的图案形成层2a中使用PTFE分散液，从而允许在用电离辐射照射时使形成在模具5的凹凸图案上的图案形成层2a硬化。 因此，本发明的微结构材料1的制造方法采用压印方法，允许图案形成层2a通过与热压印和光学印记完全不同的电离辐射R硬化。 也就是说，图案形成层2a可以被硬化，并且可以通过前所未有的方法将模具5的凹凸图案印刷在其上。

    METHOD FOR PRODUCING LOW-MOLECULAR-WEIGHT POLYTETRAFLUOROETHYLENE
    4.
    发明申请
    METHOD FOR PRODUCING LOW-MOLECULAR-WEIGHT POLYTETRAFLUOROETHYLENE 有权

    公开(公告)号：US20210347953A1

    公开(公告)日：2021-11-11

    申请号：US17259859

    申请日：2019-07-12

    Applicant: OSAKA UNIVERSITY ,  DAIKIN INDUSTRIES, LTD.

    Inventor： Akihiro OSHIMA ,  Takayuki TANAKA ,  Hideki NAKAYA ,  Kazuyuki SATOH ,  Ryosuke SENBA

    IPC: C08J3/28 ,  C08F8/50 ,  C08F114/26

    Abstract: Provided is a method for producing low-molecular-weight polytetrafluoroethylene which is less likely to generate C6-C14 perfluorocarboxylic acids and salts thereof. The disclosure relates to a method for producing low-molecular-weight polytetrafluoroethylene having a melt viscosity at 380° C. of 1.0×102 to 7.0×105 Pa·s. The method includes (1) irradiating high-molecular-weight polytetrafluoroethylene with radiation in a substantially oxygen-free state and decomposing the high-molecular-weight polytetrafluoroethylene into a low-molecular-weight component and (2) deactivating, in a substantially oxygen-free state, at least part of main-chain radicals and end radicals generated by the irradiation and providing the low-molecular-weight polytetrafluoroethylene.

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