SOLUTION OF A SOLUBILIZABLE VITREOUS CARBON PRECURSOR, VITREOUS CARBON COATING MADE FROM SUCH A SOLUTION FOR APPLICATION AT LOW TEMPERATURE, AND OBJECTS, ESPECIALLY OPTICAL FIBRES, HAVING SUCH COATING

摘要

Protective coating consisting of a vitreous carbon film obtained by applying a solution of a solubilizable vitreous carbon precursor in a suitable organic solvent to the surface of a solid substrate sensitive to high temperatures, heat treating at temperatures of between approximately 200° and 600 °C. The solubilizable vitreous carbon precursor consits of a polyethynyl-aromatic compound and, in particular, poly-(1,3 diethynyl-5-(trimethylsilyl)-benzene). Application especially for protecting optic fibres from chemical agents in the environment and especially from humidity.