Glass coating

Details Glass coating Glass coating

1979-06-18

1981-10-06

Hoffman, James R.

Glass manufacturing

Processes

With coating

427109, 427166, 427255, C03C 17245, G02B 110

Patent

active

042933269

ABSTRACT:
A process of coating glass with tin oxide by exposing the glass to a gaseous medium containing tin tetrachloride vapor under conditions causing formation of the oxide coating by chemical reaction and/or decomposition. The glass is moved continuously through the coating zone and in order to promote a high optical quality of the coating the gaseous medium is formed with a tin tetrachloride concentration corresponding to a partial pressure of at least 2.5.times.10.sup.-3 atm. and contains water vapor in a concentration corresponding to a partial pressure of at least 10.times.10.sup.-3 atm. and the gaseous medium contacts the glass face to be coated while said medium is at a temperature of at least 300.degree. C. and such face is at a temperature above 550.degree. C.

REFERENCES:
patent: 2651585 (1953-09-01), Lytle et al.
patent: 2953483 (1960-09-01), Torok
patent: 3632429 (1972-01-01), Maeda et al.
patent: 4123244 (1978-10-01), Leclercq et al.
Ghoshtagore, "Mechanism of CVD Thin Film SnO.sub.2 Formation", J. Electrochem. Soc. Solid State Science and Technology, vol. 125, No. 1, Jan. 1978, pp. 110-117.

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