| 摘要 |
<p>A process for the production of infra red reflecting fluorine-containing tin oxide coatings on glass comprises directing on to a hot glass surface, in suspension in carrier gas, (i) a finely divided solid chlorine-containing volatile inorganic tin (IV) compound optionally containing fluorine, (ii) when (i) is fluorine free, a separate source of fluorine, and (iii) when (i) contains fluorine, an organic tin compound. Especially preferred inorganic tin (IV) compounds are ammonium hexahalostannates of the formula
(NH4)2 Sn Hal6
wherein Hal represents halogen, being either chlorine, or a minor atomic proportion of fluorine and the balance chlorine. Use of solid inorganic tin (IV) compounds gives coatings of high light transmission per unit thickness. </p> |
