Antonelli, Terry & Wands
Epoxy resin composition
 An epoxy resin composition containing as a latent hardener a diaminotriazine-modified imidazole compound and dicyandiamide is improved in the usable life of an solder resist ink composition and can give a solder resist also excellent in resistance to an electroless plating bath. 
Hitachi, Ltd.
H B H C H H C H C
H05K B23K H05K C08L H05K H05K C08G H05K C23C
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Isamu Hiroshi Hitoshi Akira
Tanaka Kikuchi Oka Tomizawa