Devices, compositions, and methods incorporating adhesives whose performance is enhanced by organophilic clay constituents
Assignee3M Innovative Properties Company
InventorsTheary Chheang, Andrew M. Hine, Mark W. Muggli, Susan C. Noe, Patricia M. Sanft, William J. Schultz, Robert D. Taylor, Stanley F. Tead
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Abstract
Incorporating organophilic clay into hot melt adhesive compositions, particularly those comprising semi-crystalline, thermoplastic polymers, greatly improves the adhesive properties in many respects. Some of these improvements are particularly beneficial to the specific use of hot melt adhesives filled with electrically conductive particles for use as electrically conductive adhesives.
Claims20
An electrically conductive adhesive composition comprising:
- a) a polymeric adhesive component comprising a semicrystalline thermoplastic polymer which comprises at least one polyether chain segment and at least one polyamide chain segment;
- b) an electrically conductive filler incorporated into the adhesive component;
- and
- c) a clay component incorporated into the adhesive component, said clay component comprising an organophilic clay.
An anisotropically, electrically conductive adhesive comprising:
- a) a polymeric adhesive component comprising a semicrystalline thermoplastic polymer which comprises at least one polyether chain segment and at least one polyamide chain segment;
- b) a plurality of electrically conductive particles incorporated into the adhesive component;
- and
- c) a clay component incorporated into the adhesive component, said clay component comprising an organophilic clay.
An electrically conductive adhesive composition comprising:
- a) a polymeric adhesive component;
- b) an electrically conductive filler incorporated into the adhesive component, wherein the electrically conductive filler comprises an electrically conductive scrim;
- and
- c) a clay component incorporated into the adhesive component, said clay component comprising an organophilic clay.
Dependencies are inferred from the claim text.