Process for the preparation of a conductive polymer composition

The present invention relates to a process for the preparation of a polymer composition, comprising the following steps: A) providing a dispersion of non-conductive particles having an aspect ratio of at least 10 in an aqueous medium comprising a first, water-soluble or dispersible conductive polymer; B) mixing the resulting product from step A) with either an aqueous latex of a second polymer, or with (a) water-soluble precursor(s) of the second polymer; C) removing water from the so obtained mixture; D) heating the product from step C) to a temperature at which the second polymer flows or where the second polymer is formed from its precursor(s); and E) processing and/or solidifying the product of step D) into a desired form.