(19)
(11) EP 0 026 969 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.08.1981 Bulletin 1981/34

(43) Date of publication A2:
15.04.1981 Bulletin 1981/15

(21) Application number: 80302611

(22) Date of filing: 30.07.1980
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 30.07.1979 JP 9609779

(71) Applicant: ASAHI GLASS COMPANY LTD.
 ()

(72) Inventors:
  • Oda, Yoshio
     ()
  • Morimoto, Takeshi
     ()
  • Suzuki, Kohji
     ()

   


(54) Method of bonding electrode to cation exchange membrane


(57) A method of bonding an electrode to a cation exchange membrane of a fluorinated polymer, which in use has ion exchange groups of formula

wherein X represents an alkali metal atom, an alkaline earth metal atom or -NRR' in which R and R' respectively represent a hydrogen atom or a lower alkyl group; and m is the valence of the group X. The membrane, in a form having ion exchange groups of formula

wherein L represents a hydrogen atom or a C1-C20 alkyl group, is nelt-bonded to said electrode and then the ion exchange groups are converted into groups of formula (̵COO)mX.





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