An elastomer composition for crosslinking which comprises (A) a compound
having at least two crosslinkable reactive groups represented by the
formula (I):
##STR1##
wherein R.sup.1 are the same or different and each is fluorine atom or a
monovalent organic group, and (B) an elastomer having a curing site
capable of reacting with the crosslinkable reactive group (I). The
composition provides a crosslinked article which possesses improved
mechanical strength and heat resistance and has excellent chemical
resistance.
