Patent ID: 8617705

Claim:
An adhesive composition containing at least: (A) 100 parts by mass of a phenoxy resin; (B) 5 to 200 parts by mass of an epoxy resin having at least two epoxy groups in the molecule; (C) 1 to 20 parts by mass of an alkoxysilane-partial hydrolytic condensate which is a partial hydrolytic condensate synthesized by a hydrolytic condensation reaction of alkoxysilane including at least one kind or two or more kinds of alkoxysilane represented by the following general formulae (1) and (2), wherein the weight average molecular weight is 300 or more and 30,000 or less and an amount of residual alkoxy is 2 wt % or more and 50 wt % or less, Si(OR 3 ) 4 (1) R 1 Si(OR 3 ) 3 (2) wherein R 3 represents an alkyl group having 1 to 3 carbon atoms, and R 1 represents an alkyl group having 1 to 3 carbon atoms, a phenyl group, an oxetanyl group, a vinyl group, a hydroxyl group, an aminoalkyl group, a (meth)acryloxyalkyl group, an isocyanatealkyl group or a Î³-glycidoxyalkyl group, wherein the alkyl portion of said aminoalkyl group, said (meth)acryloxyalkyl group, said isocyanatealkyl group or said Î³-glycidoxyalkyl group contains 1 to 3 carbon atoms, wherein each R 1 may be the same or different; (D) an effective amount of a curing catalyst for an epoxy resin; (E) 5 to 900 parts by mass relative to 100 parts by mass of the total amount of the above components (A), (B), (C) and (D) of an inorganic filler; and (F) 10 to 300 parts by mass relative to 100 parts by mass of the total amount of the above components (A), (B), (C), (D) and (E) of a polar solvent having a boiling point of 80Â° C. to 180Â° C. and a surface tension of 20 to 30 dyne/cm at 25Â° C.