| 摘要 |
PURPOSE:To provide a heat-resistant resin film having excellent resistance to heat and chemicals, mechanical characteristics, dielectric characteristics and low water absorptive power and suitable for use as an electrical insulating film, consisting of a cured article obtd. by curing a mixture of an arom. polythioether sulfone polymer and a curing agent. CONSTITUTION:This heat-resistant film is formed from a cured article obtd. by curing a mixture of an arom. polythioether sulfone polymer and a curing agent. Pref. this film is prepd. by molding a mixture of an arom. polythioether sulfone polymer and at least one curing agent selected from the group consisting of epoxy compds. having at least two epoxy groups per molecule, aminoplast resins and a metal acetylacetonate into a film and heat-treating the film. Preferred examples of the metal acetylacetonate are Cu(II), Mn(II), Fe(III), or Ni(II) acetylacetonate. |
