| 摘要 |
<p>An elastic copolymer composition which contains a copolymer having a vinylidene fluoride unit content as low as 0.5 to 15 mol.%, is satisfactory in polyol vulcanizability, and gives a vulcanizate excellent in heat resistance and oil resistance. The composition comprises a tetrafluoroethylene (35 to 65 mol.%)/propylene (20 to 50.mol.%)/vinylidene fluoride (0.5 to 15 mol.%) copolymer, a salt of an organic quaternary phosphonium compound with either an organic quaternary ammonium hydroxide or a nitrogenous heterocyclic compound, an organic polyhydroxy compound, and a metal oxide or metal hydroxide and optionally contains an amine compound.</p> |
