Conductive materials with electrical stability and good...

Details Conductive materials with electrical stability and good... Conductive materials with electrical stability and good...

2006-09-19

2006-09-19

Boyer, Charles (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C252S514000, C252S502000, C525S523000, C525S526000, C525S486000

Reexamination Certificate

active

07108806

ABSTRACT:
A composition that comprises a) an admixing of at least one epoxy resin and aliphatic amine wherein the ratio of epoxy function group/amine is greater than 1; b) a conductive filler; c) one or more corrosion inhibitors, oxygen scavengers or both; d) imidazole as a curing agent/catalyst; and e) optionally other additives such as organic solvents, flow additives, adhesion promoters and rheology modifiers. The reaction of epoxy and aliphatic amine with excess epoxy functionality results in a flexible resin with remaining active epoxy groups. The compositions exhibit improved electrical stability and impact resistance over other conductive adhesive compositions that do not comprise the admixture.

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