Patent ID: 9169394
Filing Date: 2015-10-27
Classification: B82Y,C08G,C08J,C08K,C08L,H01B

Abstract:
1. A method of dispersing carbon nanotubes in a thermosetting resin, comprising: (a) contacting the carbon nanotubes with a dispersant in a solvent to form a dispersion mixture, wherein the dispersant is a graft polymer comprising a polymeric backbone and at least one side chain grafted to the polymeric backbone, wherein the polymeric backbone is a polyimide backbone having at least one aromatic ring or a polybenzimidazole backbone having at least one aromatic ring, and wherein the at least one side chain comprises a side chain having a phenolic structure and at least one hydroxyl group, a side chain having a bisphenolic structure and at least one hydroxyl group, or a combination thereof; and (b) adding the thermosetting resin to the dispersion mixture to form a resin blend, wherein the at least one hydroxyl group present in the at least one side chain of the dispersant covalently bonds to the thermosetting resin.