Title:
ETHYLENE COPOLYMER COMPOSITION FOR FUEL CELL GASKET, AND GASKET FOR FUEL CELL COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2023020524
Kind Code:
A
Abstract:
To provide an ethylene copolymer composition for a fuel cell gasket which is improved in fluidity, vulcanization rate, and durability such as thermal aging resistance.SOLUTION: The present invention relates to an ethylene copolymer composition for a fuel cell gasket which contains: 0-50 pts. mass of an ethylene/α-olefin/nonconjugated polyene copolymer (S) which has constituent units derived from ethylene (A), a C3-20 α-olefin (B), and a nonconjugated polyene (C) containing two or more partial structures selected from a group consisting of following general formulae (1) and (II) in total in a molecule and satisfies specific requirements; and 100-50 pts. mass of an ethylene/α-olefin/nonconjugated polyene copolymer (A) which has a structural unit derived from ethylene [A1], a structural unit derived from a C4-20 α-olefin [A2], and a structural unit derived from a nonconjugated polyene [A3] and satisfies specific requirements [provided that the total of the copolymer (S) and the copolymer (A) is 100 pts. mass].SELECTED DRAWING: None
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Inventors:
ISHII YUJI
ARINO TAKAMASA
ARINO TAKAMASA
Application Number:
JP2021125925A
Publication Date:
February 09, 2023
Filing Date:
July 30, 2021
Export Citation:
Assignee:
MITSUI CHEMICALS INC
International Classes:
H01M8/0284; C08F10/02; C08L23/08; C09K3/10
Attorney, Agent or Firm:
Patent Attorney Corporation SS International Patent Office
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