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    • 1. 发明申请
    • Liquid fluoropolymer composition and process for producing crosslinked fluorochemical
    • US20070141425A1
    • 2007-06-21
    • US10580964
    • 2004-12-01
    • Takuya AraseMasayoshi Tatemoto
    • Takuya AraseMasayoshi Tatemoto
    • H01M8/10B05D5/12
    • H01M8/106C08K5/18C09D127/12H01M8/0289H01M8/1023H01M8/1039H01M8/1081H01M8/1088Y02P70/56C08L27/12
    • It is an object of the present invention to provide a liquid composition which comprises an acid/acid salt group-containing polymer and from which cured articles excellent in mechanical characteristics and undergoing only slight dimensional changes depending on the moisture content can be produced by application thereof to a substrate or impregnation of a porous material therewith. The present invention relates to a fluoropolymer liquid composition comprising a fluoropolymer liquid (A) which comprises a liquid medium and a crosslinkable functional group-containing crosslinkable fluoropolymer, wherein said fluoropolymer liquid (A) is a fluoropolymer liquid dispersion (AD) having, dispersed in a liquid dispersion medium, particles of a crosslinkable fluoropolymer (PD) containing acid/acid salt groups or organic groups capable of undergoing hydrolysis and thus being converted to carboxyl groups, or a fluoropolymer solution (AS) having, dissolved in a fluorosolvent or an alcohol/water mixed solvent, a crosslinkable fluoropolymer (PS) containing acid/acid salt groups or acid/acid salt groups precursors; said acid/acid salt groups are sulfonic acid groups, carboxyl groups or groups of the formula —SO2NR2R3, —SO3NR4R5R6R7, —SO3M11/L, —COONR8R9R10R11 or —COOM21/L, wherein R2 represents a hydrogen atom or M51/L, R3 represents an alkyl group or an sulfonyl-containing group, R4, R5, R6, R7, R8, R9, R10 and R11 are the same or different and each represents a hydrogen atom or an alkyl group, and M1, M2 and M5 each represents a metal having a valence of L, said metal having a valence of L being a metal belonging to the group 1, 2, 4, 8, 11, 12 or 13 of the periodic table; and said acid/acid salt groups precursors are —SO2F, —SO2NR22R23 (wherein R22 and R23 are the same or different and each represents an alkyl group) or organic groups capable of undergoing hydrolysis and thus being converted to carboxyl groups.
    • 5. 发明授权
    • Process for producing fluoroionomer, method for purification and concentration of the ionomer, and method of film formation
    • 氟代离聚物的制造方法,离聚物的净化和浓缩方法以及成膜方法
    • US07482415B2
    • 2009-01-27
    • US10182737
    • 2001-02-16
    • Masayoshi TatemotoTadashi InoKenji IshiiTakuji IshikawaTakuya Arase
    • Masayoshi TatemotoTadashi InoKenji IshiiTakuji IshikawaTakuya Arase
    • C08F30/04
    • C08F216/1466C08F6/003C08L27/12
    • The present invention provides a process for producing a fluorinated ionomer, comprising copolymerizing, in the presence of a polymerization initiator, (i) a compound represented by Formula (I) (M)1/LOSO2CFY(CF2)mO(CFXCF2O)nCF═CF2  (I) wherein M is H or a metal with a valence of L (L is 1, 2 or 3), X is F, Cl or CF3, Y is halogen, m is 1 to 5, and n is 0 to 5, (ii) tetrafluoroethylene and (iii) at least one third monomer selected from the group consisting of hexafluoropropylene, chlorotrifluoroethylene, vinylidene fluoride, CF2═CFORf (Rf is C1 to C5 perfluoroalkyl) and ethylene. The present invention further provides a method for purifying and concentrating a fluorinated ionomer, comprising ultrafiltration or dialysis of a fluorinated ionomer solution or dispersion, and a method for forming a film of the fluorinated ionomer.
    • 本发明提供一种制备氟化离聚物的方法,包括在聚合引发剂存在下共聚合(ⅰ)由式(Ⅰ)表示的化合物<?在线式描述=“在线式”末端 =“铅”→(M)1 / LOSO2CFY(CF2)mO(CFXCF2O)nCF-CF2(I)<βin-line-formula description =“In-line Formulas”end =“tail”?> H或化合价L(L为1,2或3)的金属,X为F,Cl或CF 3,Y为卤素,m为1至5,n为0至5,(ii)四氟乙烯和( iii)至少一种选自六氟丙烯,三氟氯乙烯,偏二氟乙烯,CF 2 -CFOR f(R f为C 1至C 5全氟烷基)和乙烯的第三单体。 本发明还提供了一种用于纯化和浓缩氟化离聚物的方法,其包括氟离聚物溶液或分散体的超滤或透析,以及形成氟化离聚物膜的方法。