PROCESS FOR PREPARING A TIN OXIDE PIGMENT DOPED WITH ANTIMONY OXIDE, HAVING IMPROVED ELECTRICAL CONDUCTIVITY PROPERTIES, AND CONDUCTIVE WHITE OR COLOURED PAINTS CONTAINING IT AND USEFUL FOR ELIMINATING ELECTROSTATIC CHARGES

摘要

The invention relates to a process for the preparation of an antimony oxide-doped tin oxide pigment with a white or off-white color and a surface electrical resistance not exceeding 20 ohms/square, comprising the intimate mixing of tin oxide and antimony oxide, then heating the resultant mixture to a high temperature, in which a proportion of 1.25 to 10 parts by weight of antimony oxide Sb2O3 per 100 parts by weight of tin oxide SnO2 is mixed and the mixture of Sb2O3 and of SnO2 is calcined at a temperature in the range from 900 DEG to 950 DEG C. Application for the manufacture of electrically conductive white or colored paints which are useful particularly in aeronautics.