Patent ID: 8257677

Claim:
A method of dispersing carbon nanotubes (CNTs) in a continuous phase as the dispersion medium, wherein: (i) first, before the dispersing operation, a method step is carried out in which the carbon nanotubes (CNTs) are contacted and homogenized with a continuous phase and at least one polymeric dispersant, wherein the polymeric dispersant is used in amounts of 25% to 400% by weight, based on the carbon nanotubes (CNTs) to be dispersed wherein the polymeric dispersant is based on a functionalized polymer having a number-average molecular mass of at least 2000 g/mol; and (ii) subsequently the carbon nanotubes (CNTs) are dispersed in the continuous phase in the presence of the polymeric dispersant, with introduction of an energy input sufficient for dispersing, in amounts of 1×10 −1 % to 30% by weight, based on the resulting dispersion, the amount of energy introduced, calculated as energy introduced per unit quantity of carbon nanotubes (CNTs) to be dispersed, being 15 000 to 100 000 kJ/kg wherein the dispersing operation is carried out without prior pretreatment of the carbon nanotubes (CNTs) to be dispersed.