Adhesive material with carbon material and method for its production and use

• US 10,377,925 B2
• Filed: 02/10/2012
• Issued: 08/13/2019
• Est. Priority Date: 02/10/2011
• Status: Active Grant

• Current Assignee: FutureCarbon GmbH
• Original Assignee: FutureCarbon GmbH
• Inventors: Schubert, Tim, Meinen, Tomas, Zenkel, Christian
• Primary Examiner(s): Leonard, Michael L
• Application Number:
  US13/984,594
• Publication Number:
  US 20140034231A1
• Time in Patent Office: 2,741 Days
• CPC Class Codes: C08K 2201/011 Nanostructured additives
• CPC Class Codes: C08K 3/04 Carbon
• CPC Class Codes: C08K 3/041 Carbon nanotubes
• CPC Class Codes: C08K 7/06 Elements
• CPC Class Codes: C09J 11/04 inorganic
• CPC Class Codes: C09J 175/04 Polyurethanes
• CPC Class Codes: C09J 5/06 involving heating of the applied adhesive
• CPC Class Codes: H01B 1/24 the conductive material comprising carbon-silicon compounds, carbon or silicon

Abstract

The present invention relates to an adhesive material, especially an electrically and/or thermally and/or radiation-curing or curable adhesive material, having at least one adhesive constituent and/or adhesive matrix, and moreover having at least one additive in the form of a carbon material, especially based on carbon nanomaterials and/or carbon micromaterials, present in the adhesive constituent and/or adhesive matrix. The invention further relates to a method for producing, activating and/or curing an adhesive material. Finally the invention also relates to a method for adhesively bonding two substrates.

Claims

1. An adhesive material comprising at least one adhesive constituent, adhesive matrix, or both in which one additive in the form of an aqueous carbon nanotube dispersion is dispersed within the adhesive material, wherein the aqueous carbon nanotube dispersion is stabilized with an anionic surfactant, wherein the carbon nanotubes are present in the adhesive material at a concentration of between 0.5 wt % and 3.0 wt %, and wherein the adhesive material is cured by microwave radiation or a combination of microwave radiation and thermal curing.

2. The adhesive material of claim 1 wherein the adhesive constituent or adhesive matrix is polyurethane-based.

3. The adhesive material of claim 1 wherein the carbon nanotubes are multiwalled carbon nanotubes (MWNTs).

4. The adhesive material of claim 1 wherein the adhesive constituent or adhesive matrix is a hot melt adhesive.

5. The adhesive material of claim 1 further comprising a hardener.

6. The adhesive of claim 1 wherein the carbon nanotubes are present in the adhesive material at a concentration of between 0.5 wt % and 2.0 wt %.

7. The adhesive of claim 1 wherein the carbon nanotubes are present in the adhesive material at a concentration of between 0.5 wt % and 1.5 wt %.