Use of a dispersion of carbon nanotubes in a copolyamide as a conductive adhesive composition

摘要

Electrically conductive adhesive, comprises essentially a conductive amount of carbon nanotubes and an adhesive amount of at least one copolyamide obtained from at least two different starting products from (i) lactams, (ii) aminocarboxylic acids and (iii) equimolar quantities of diamines and dicarboxylic acids. Independent claims are included for: (1) a process for gluing together identical or different materials, comprising applying the adhesive composition to the materials to be joined, compressing the laminate obtained at a high temperature, and cooling it down to ambient temperature; (2) a masterbatch comprising carbon nanotubes (15-25 wt.%) and the copolyamide; (3) a process for manufacturing the composition, comprising mixing the nanotubes and the copolyamide in the molten state to produce a masterbatch comprising nanotubes (10-30 wt.%), mixing or diluting the masterbatch with the copolyamide to obtain an electrically conductive composition comprising nanotubes (0.1-5 wt.%); and (4) a laminate produced by the process of gluing together identical or different materials.