To provide an adhesive seal composition for a solid polymer type fuel cell separator which excels in compression permanent distortion property, especially in sealing property under a condition of constant temperature and constant humidity and has good adhering property with various types of separator substrates, and to provide a separator seal and the separator.
The adhesive seal composition for the solid polymer type fuel cell separator is characterized by having as indispensable components: (A) 100 parts by weight of organo polysiloxane containing an alkenyl group bonding with at least two silica atoms in one molecule; (B) 0.5 to 20 parts by weight of organo hydrogen polysiloxane containing hydrogen atoms bonding with at least two silica atoms in one molecule; (C) 10 to 40 parts by weight of fumed silica with a specific surface area which is 50 to 400 m
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Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa