| 摘要 |
PROBLEM TO BE SOLVED: To provide a halogen-free adhesive composition yielding a cured product, on curing, that exhibits excellent flame retardancy and electric property (anti-migration properties), and to provide an adhesive sheet, a cover lay film, and a flexible copper-clad laminate plate, using the composition. SOLUTION: The flame retardant adhesive composition including (A) a halogen-free epoxy resin, (B) a thermoplastic resin and/or a synthetic rubber, (C) a curing agent, (D) a phytate compound, and (E) a curing accelerator is provided. Also provided are an adhesive sheet having a layer including the composition, and a protective layer for covering the layer including the composition; a coverlay film having an electrically insulating film, and a layer including the composition provided on the film; a flexible copper-clad laminate plate having an electrically insulating film, a layer comprising the composition and provided on the film, and a copper foil; a process for producing the adhesive sheet; a process for producing the coverlay film; and a process for producing the flexible copper-clad laminate plate. COPYRIGHT: (C)2007,JPO&INPIT
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