METHOD OF DEPOSITING TIN OXIDE AND TITANIUM OXIDE COATINGS ON FLAT GLASS AND THE RESULTING COATED GLASS

摘要

A CHEMICAL VAPOUR DEPOSITION PROCESS FOR LAYING DOWN A TIN OR TITANIUM OXIDE COATING ON HOT FLAT GLASS THROUGH THE USE OF AN ORGANIC OXYGEN CONTAINING COMPOUND AND THE CORRESPONDING METAL TETRACHLORIDE. THE ORGANIC OXYGEN COMPOUNS IS PREFERABLY AN ESTER HAVING AN ALKYL GROUP WITH A (BETA) HYDROGEN IN ORDER TO OBTAIN A HIGH DEPOSITION RATE. BECAUSE OF THE HIGH DEPOSITION RATES ATTAINABLE, TYPICALLY AT LEAST 130 Å/SECOND, THE PROCESS IS SUITABLE FOR DEPOSITING COATINGS OF SUBSTANTIAL THICKNESS ON A MOVING RIBBON OF FLOAT GLASS DURING THE GLASS PRODUCTION PROCESS.