Patent ID: 8414964
Filing Date: 2013-04-09
Classification: B82Y,C08J,C08K,C09D,H01B,Y10S,Y10T

Abstract:
1. A process for producing an electrically conductive film having an electrically conductive layer on at least one side comprising: applying a carbon nanotube dispersion containing a carbon nanotube (A), a carbon nanotube dispersant (B), a binder resin (C) and a solvent (D) to at least one side of a thermoplastic film before completion of crystal orientation such that total contents of (A), (B) and (C) in the electrically conductive layer is 90% by weight or more relative to the entire electrically conductive layer, weight rates of (A), (B) and (C) satisfy the following, and a weight ratio of (B) and (A) ((B)/(A)) is 0.5 or more and 15.0 or less: (A) 1.0 to 40.0% by weight (B) 0.5 to 90.0% by weight (C) 4.0 to 98.5% by weight (provided that the total of contents of (A), (B) and (C) is 100% by weight), thereafter stretching the thermoplastic film with the dispersion by a monoaxial or biaxial stretching method, and heat-treating the film after stretching at a temperature higher than the boiling point of the electrically conductive layer solvent to complete crystal orientation of the thermoplastic resin film.