The present invention relates to a process for the preparation of electrochromic coating solution using a redistribution of polyaniline , polyaniline after which the polymerization reaction is dispersed in a colloidal formic acid, the obtained coating solution was stabilized by the addition of a certain amount of colloidal stabilizers in dissolved aqueous solution , was added to the binder does not impair the stability is to prepare a coating solution . ; coating solution of the present invention , a method of polymerization by applying to the surface and at the same time not so easy to control stabilization of the mass production and the production process , and also the re-use of the solutions to reduce the pollution and increase the coating property is excellent .
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