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    • 63. 发明申请
    • Fluorine-Containing Elastomer Composition And Molded Article Comprising The Same
    • 含氟弹性体组合物和包含它的成型品
    • US20070219332A1
    • 2007-09-20
    • US11587573
    • 2005-04-22
    • Keiko WashinoKazuyoshi KawasakiMitsuru Kishine
    • Keiko WashinoKazuyoshi KawasakiMitsuru Kishine
    • C08F16/24
    • C08K5/0025C08K5/16C09K3/1009F16J15/102C08L27/12C08L27/16
    • The present invention provides a fluorine-containing elastomer composition excellent in heat resistance, comprising a fluorine-containing elastomer containing a vinylidene fluoride unit, which is capable of a crosslinking reaction, and a crosslinking agent. The present invention also provides a molded article, a sealing material, and a sealing material for an oxygen sensor excellent in heat resistance, which comprises the composition. The present invention is a fluorine-containing elastomer composition comprising (A) at least one compound selected form the group consisting of a compound containing at least two crosslinking reaction group s represented by the general formula (1), a compound represented by the general formula (2), a compound represented by the general formula (3) and a compound represented by the general formula (4); and (B) a fluorine-containing elastomer capable of a crosslinking reaction with the compound (A), comprising a vinylidene fluoride unit.
    • 本发明提供耐热性优异的含氟弹性体组合物,其含有能够进行交联反应的偏二氟乙烯单元的含氟弹性体和交联剂。 本发明还提供一种模制品,密封材料和用于具有优异耐热性的氧传感器的密封材料,其包含该组合物。 本发明是一种含氟弹性体组合物,其含有(A)至少一种选自由通式(1)表示的至少两个交联反应基团的化合物,由通式 (2)表示的化合物,由通式(3)表示的化合物和由通式(4)表示的化合物。 和(B)能够与化合物(A)交联反应的含氟弹性体,其包含偏二氟乙烯单元。
    • 65. 发明申请
    • Process for producing fluoropolymer
    • US20050250922A1
    • 2005-11-10
    • US10521807
    • 2003-07-23
    • Masaki IrieSatoshi TokunoSadashige IrieYosuke NishimuraYoshinori HoriMitsuru Kishine
    • Masaki IrieSatoshi TokunoSadashige IrieYosuke NishimuraYoshinori HoriMitsuru Kishine
    • C08F2/00C08F14/18C08F214/18C08F214/22
    • C08F2/00C08F214/18C08F214/22
    • The present invention provides a process for preparing a fluorine-containing polymer having few branched chains and little weight change in high temperatures, which is a new process wherein composition distribution substantially does not occur. The fluorine-containing polymer is prepared by a batch copolymerization process conducted under conditions of reduced temperature of at least 0.95 and reduced pressure of at least 0.80 of the critical constant calculated from critical temperature, critical pressure and composition ratio of each monomer in the gaseous phase of the reaction vessel using the Peng-Robinson formula; wherein when the number of monomer components in the target polymer is represented as n (n is an integer of 2 or larger), the name of each monomer component is represented as A1, A2, . . . An, the weight percentage of each monomer component A1, A2, . . . An of the target polymer composition is represented as a1, a2, . . . an (%) (a satisfies ∑ n ⁢ a n = 100 ) , the weight percentage of each monomer component of the initial monomer composition is represented as a′1, a′2 . . . a′n (%) (a′ satisfies ∑ n ⁢ a n ′ = 100 and a′1, a′2, . . . a′n is determined in a constant manner depending on predetermined polymerization conditions) and specific gravity of the gaseous phase monomers when polymerizing/specific gravity of the target polymer is represented as B, the composition weight ratio of additional monomers is calculated for each monomer from the formula (a1−a′1×B):(a2−a′2×B) . . . (an−a′n×B) in the order of components A1, A2, . . . An, and additional monomers containing additional monomers in the composition weight ratio of additional monomers are added.