Adhesive composition, adhesive varnish, adhesive film and wiring film

摘要

An adhesive composition includes (A) a phenoxy resin including a plurality of hydroxyl groups at a side chain: 100 parts by mass, (B) a multifunctional isocyanate compound including an isocyanate and at least one functional group selected from the group consisting of a vinyl group, an acrylate group and a methacrylate group within its molecule: 2 to 55 parts by mass, (C) a maleimide compound and/or a reaction product thereof having a plurality of maleimide groups within its molecule: 5 to 30 parts by mass, and (D) one or more kinds of an inorganic filler having an average particle size of 5 μm or less which is measured by a laser diffraction: 1 to 50 parts by mass, a total amount of the components (B) and (C) is 7 to 60 parts by mass.

主权项

1. A double-sided adhesive film comprising:
a polyimide base material; and adhesive layers comprising an adhesive composition and provided on both surfaces of the polyimide base material, wherein the adhesive composition includes
(A) a phenoxy resin including a plurality of hydroxyl groups at a side chain: 100 parts by mass;(B) a multifunctional isocyanate compound comprising an isocyanate and at least one functional group selected from the group consisting of a vinyl group, an acrylate group and a methacrylate group within its molecule: 2 to 55 parts by mass;(C) a maleimide compound and/or a reaction product thereof having a plurality of maleimide groups within its molecule: 5 to 30 parts by mass; and(D) one or more kinds of an inorganic filler having an average particle size of 5 μm or less which is measured by a laser diffraction: 1 to 50 parts by mass, and wherein a total amount of the components (B) and (C) is 7 to 60 parts by mass.