FLUOROELASTOMER COMPOSITION AND MOLDED ARTICLE COMPRISING THE COMPOSITION
    2.
    发明公开
    FLUOROELASTOMER COMPOSITION AND MOLDED ARTICLE COMPRISING THE COMPOSITION 有权
    FORMKÖRPERMIT EINER FLUORELASTOMERZUSAMMENSETZUNG

    公开(公告)号:EP2019127A1

    公开(公告)日:2009-01-28

    申请号:EP07743535.2

    申请日:2007-05-17

    IPC分类号: C08L27/12 C08K3/20 C09K3/10

    摘要: An object of the present invention is to provide a fluorine-containing elastomer composition being flexible and having excellent fuel barrier property, heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a sealing material, a molded article and a fuel hose obtained by crosslinking the fluorine-containing elastomer composition. The composition is a fluorine-containing elastomer composition comprising a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a hydrotalcite, wherein an acid acceptor comprising only an oxide or hydroxide of a divalent metal is contained in an amount of not more than 2 parts by weight based on 100 parts by weight of the fluorine-containing elastomer.

    摘要翻译: 本发明的目的是提供一种柔性的具有优异的燃料阻隔性,耐热性,耐化学性和耐油性的含氟弹性体组合物。 本发明的另一个目的是提供一种通过交联含氟弹性体组合物获得的密封材料,模塑制品和燃料软管。 该组合物是包含多元醇交联性含氟弹性体,多元醇交联剂和水滑石的含氟弹性体组合物,其中仅含有二价金属的氧化物或氢氧化物的酸受体的含量不大于 基于100重量份的含氟弹性体2重量份。

    DIELECTRIC WAVEGUIDE LINE
    5.
    发明公开

    公开(公告)号:EP4099497A1

    公开(公告)日:2022-12-07

    申请号:EP21757223.9

    申请日:2021-02-19

    IPC分类号: H01P3/16

    摘要: Provided is a dielectric waveguide capable of reducing electromagnetic wave penetration. The disclosure relates to a dielectric waveguide comprising: a center dielectric A1; a dielectric layer A2 surrounding the center dielectric A1; and a dielectric layer A3 surrounding the dielectric layer A2, the center dielectric A1 comprising polytetrafluoroethylene, the center dielectric A1, the dielectric layer A2, and the dielectric layer A3 having relative permittivities at 25°C and 6 GHz represented by ε A1 , ε A2 , and ε A3 , respectively, ε A1 , ε A2 , and ε A3 satisfying the following: ε A1 is 2.20 or lower; ε A2 is 1.90 or lower; ε A3 is 1.55 or lower; and ε A1 > ε A2 > ε A3 is satisfied.

    THERMOPLASTIC RESIN COMPOSITION AND METHOD FOR PRODUCING SAME

    公开(公告)号:EP3822315A1

    公开(公告)日:2021-05-19

    申请号:EP19834304.8

    申请日:2019-07-12

    IPC分类号: C08L27/18 C08K5/17 C08L27/16

    摘要: The present invention provides a thermoplastic resin composition comprising a fluororesin (A) and a crosslinked fluoroelastomer (B), wherein the fluororesin (A) is a copolymer that contains a chlorotrifluoroethylene unit and a tetrafluoroethylene unit and that has at least one functional group selected from the group consisting of a carbonyl group, an olefinic group and an amino group at a main chain terminal or side chain terminal of the polymer; wherein the crosslinked fluoroelastomer (B) is obtained by subjecting a fluoroelastomer (b) to a dynamic crosslinking treatment along with a polyamine compound (c) having a thermal decomposition temperature of 210°C or higher and a crosslinking accelerator (d) in the presence of the fluororesin (A) under conditions for melting the fluororesin (A); and wherein a mass ratio between the fluororesin (A) and the fluoroelastomer (b) (fluororesin (A)/fluoroelastomer (b)) is less than 70/30 and 20/80 or more.

    THERMOPLASTIC RESIN COMPOSITION AND METHOD FOR PRODUCING SAME

    公开(公告)号:EP3760674A1

    公开(公告)日:2021-01-06

    申请号:EP19761158.5

    申请日:2019-02-26

    摘要: The present invention provides a thermoplastic resin composition comprising a fluororesin (A) and a crosslinked fluoroelastomer (B), wherein the fluororesin (A) is a copolymer that contains a chlorotrifluoroethylene unit and a tetrafluoroethylene unit and that has at least one functional group selected from the group consisting of a carbonyl group, an olefinic group and an amino group at a main chain terminal or side chain terminal of the polymer, and wherein the crosslinked fluoroelastomer (B) is obtained by subjecting a fluoroelastomer (b) to a dynamic crosslinking treatment along with a polyamine compound (c) having a thermal decomposition temperature of 210°C or higher and a crosslinking accelerator (d) in the presence of the fluororesin (A) under conditions for melting the fluororesin (A).

    MOLDED ARTICLE COMPRISING A FLUOROELASTOMER COMPOSITION
    8.
    发明授权
    MOLDED ARTICLE COMPRISING A FLUOROELASTOMER COMPOSITION 有权
    WITH A FLUOR弹性体组合物成形体

    公开(公告)号:EP2019127B1

    公开(公告)日:2012-03-21

    申请号:EP07743535.2

    申请日:2007-05-17

    摘要: A fluoroelastomer composition which is flexible, has fuel-barrier properties, and is excellent in properties including heat resistance, chemical resistance, and oil resistance. Also provided are a sealing material, molded article, and fuel hose which are obtained by crosslinking the fluoroelastomer composition. The fluoroelastomer composition comprises a polyol-crosslinkable fluoroelastomer, a polyol type crosslinking agent, and a hydrotalcite, wherein an acid acceptor consisting only of one or more divalent-metal oxides or hydroxides is contained in an amount of 2 parts by weight or smaller per 100 parts by weight of the fluoroelastomer.