The radio-frequency curing type adhesiveness seat null which was formed making use of the radio-frequency curing type resin composition and

摘要

PROBLEM TO BE SOLVED: To obtain a radiofrequency-curing resin composition which is excellent in sensitivity to high frequency, cures in a short time without deformation of material, and has a long pot life by using a prescribed epoxy resin, cyanoguanidine, a liquid imidazole and a specified amine as the essential constituents. ;SOLUTION: This composition comprises essentially bisphenol A epoxy resin preferably in an amount of 100 pts.wt., cyanoguanidine preferably in an amount of 3-25 pts.wt., more preferably 5-20 pts.wt., a liquid imidazole or its derivative (e.g. 1-methyl-2-ethylimidazole) preferably in an amount of 0.1-3 pts.wt., more preferably 0.2-2 pts.wt., and a liquid tertiary amine [e.g. tris (dimethylaminomethyl)phenol tri(2-ethylhexoate] preferably in an amount of 0.1-2 pts.wt., more preferably 0.15-1.5 pts.wt. The composition is excellent in the resistance to moist heat, joint strength and reliability in respect of heat resistance.;COPYRIGHT: (C)1998,JPO