FIELD: chemistry.
SUBSTANCE: invention relates to fluorine polymeric compositions with amidin-containing vulcanising substances. Composition containes: (a) fluorine polymer, which includes interpolymerised blocks obtained from monomer with nitrogen-containing lacing centre; and (b) amidin-containing vulcanising substance, where vulcanising substance is bisamidin, perforated amidin or salt of one of these compounds is described; fluorine polymer being facultatively perforated.
EFFECT: reduction of indices of fluorine polymer remanent strain with retaining high-temperature indices.
10 cl, 4 ex, 1 tbl
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