Patent ID: 7037447

Claim:
A conductive ink comprising: (a) in the range of about 1 to 20 weight percent of a thermally curable resin system comprising (i) one or more of a maleimide, nadimide, or itaconimide, (ii) a comonomer, wherein the comonomer comprises a (meth)acrylate, epoxy, vinyl ether, vinyl ester, vinyl ketone, vinyl aromatic, vinyl cycloalky, allyl amide, or combination of any two or more thereof, and (iii) a catalyst; wherein the weight ratio of the one or more maleimide, nadimide, itaconimide, or combination/comonomer/catalyst in the resin system falls in the range of about 2–100/4–200/1; (b) in the range of about 40 to 90 weight percent of a particulated electrically conductive material; (c) in the range of 0 to about 50 weight percent of an organic solvent; and (d) in the range of about 0.5 to 10 weight percent of at least one additional component selected from the group consisting of flow additives, adhesion promoters, rheology modifiers, electrical enhancers, stabilizer and mixtures of any two or more thereof; wherein weight percent is based on the total of components (a), (b), (c), and (d).