Method for improving emmissivity value of a pyrolytically applie

Details Method for improving emmissivity value of a pyrolytically applie Method for improving emmissivity value of a pyrolytically applie

1985-08-05

1988-10-11

Kellogg, Arthur

Glass manufacturing

Processes

With coating

65 301, 427160, 427165, C03C 1728

Patent

active

047768703

ABSTRACT:
This specification is directed to a method for improving emmissivity value of a pyrolytically applied doped tin oxide film on a surface of a glass substrate, such as a sheet of glass. The method includes the steps of heating the surface of the glass substrate to an initial temperature in a range from 560.degree.-650.degree. C. and thereafter applying to the surface of the glass substrate a doped tin oxide film by a pyrolytic decomposition process. The pyrolytic decomposition process is one which cools the surface of the glass substrate. The surface of the glass substrate is reheated to a temperature equal to or greater than the initial temperature but not in excess of 675.degree. C. Thereafter, a doped tin oxide film is applied to the previously coated surface of the glass substrate. The reheating and application steps may be repeated as many times as desired to produce a coated glass substrate having the desired coating thickness and emmissivity characteristics.

REFERENCES:
patent: 3679386 (1972-07-01), Kushihashi et al.
patent: 3984591 (1976-10-01), Plumat et al.
patent: 4349369 (1982-09-01), Laethem et al.
patent: 4393098 (1983-07-01), Stinson et al.
patent: 4590096 (1986-05-01), Lindner
patent: 4612217 (1986-09-01), Gordon

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