| abstract |
[PROBLEMS] To provide a thermosetting adhesive composition that can exhibit good tackiness before curing, exhibit excellent adhesiveness after curing, and exhibit excellent processability during ultraviolet laser processing. In a thermosetting adhesive composition, (meth) acrylic acid alkyl ester (a) having 2 to 14 carbon atoms of an alkyl group is used as a monomer component in an amount of 60 to 75 with respect to the total amount of monomer components. Acrylic polymer (X) containing 20% by weight, 20-35% by weight of cyano group-containing monomer (b) and 0.5-10% by weight of carboxyl group-containing monomer (c): 100 parts by weight The carboxylic acid resol type phenol resin (Y) represented by the following formula (1): 1 to 20 parts by weight, and further containing an ultraviolet absorber (Z). (However, in the formula (1), R 1 "-CH 2 -" or "-CH 2 -O-CH 2 -". It shows a, n is a positive integer, m is an integer from 1 to 4 Is) [Selection figure] None |