Patent ID: 8663804

Claim:
A printed wiring board comprising in order a first layer of a first dielectric substrate, a second layer of one or more discrete electrically conductive pathways disposed upon said first dielectric substrate, a third layer of a bonding layer in adhesive contact with said discrete electrically conductive pathways, and adheringly disposed upon a fourth layer comprising a second dielectric substrate, said bonding layer comprising a curable composition comprising a solvent having mixed therewithin an epoxy and a di-isoimide represented by Structure I wherein R 1 is H, halogen, hydrocarbyl, hydrocarbyloxy, hydrocarbylthio, amido, sulfonamido, cyclic amino, acyl, morpholino, piperidino, or NR′R″ wherein R′ and R″ are independently H, alkyl or aromatic, substituted or unsubstituted.