To provide a coverlay film and an adhesive sheet which are halogen free and have excellent frame retardancy, migration and adhesion properties and an adhesive agent composition used for the same.
The adhesive agent composition comprises (A) a urethane-modified carboxyl group-containing polyester resin, (B) a non-halogen epoxy resin, (C) a curing agent, (D) a phosphorus-based flame retardant and (E) an inorganic filler. The rate of each component is 100 pts.mass component (A), 5-100 pts.mass component (B), 0.1-30 pts.mass component (C), 10-60 mass% of the component (E) based on the sum total of the components (A) to (C) and the rate of phosphorus element in the whole organic solid components is ≥2.5 mass%. The coverlay film comprises an electric insulation film layer and a layer comprising the composition and laid on the film layer. The adhesive sheet have the layer comprising the composition and a releasing material layer covering the layer comprising the composition.
NAKANISHI NOBORU
HOSHIDA SHIGEHIRO
AMANO TADASHI
| JP2005125724A | 2005-05-19 | |||
| JPH11116930A | 1999-04-27 | |||
| JP2000345005A | 2000-12-12 | |||
| JP2005015595A | 2005-01-20 |