Process for coating a glass sheet with a semi-reflective film of

Details Process for coating a glass sheet with a semi-reflective film of Process for coating a glass sheet with a semi-reflective film of

1978-02-16

1979-10-23

Hoffman, James R.

Coating processes

Coating has x-ray, ultraviolet, or infrared properties

427164, 427168, B05D 112, B05D 506, C03C 1722

Patent

active

041721594

ABSTRACT:
The surface of a transparent refractory material such as glass or a vitreous ceramic is coated with a semi-reflective film of tin oxide by projecting finely divided particles of a pyrolytically decomposable organotin compound against the surface of the substrate material that has been heated to a temperature of between about 400.degree. and 650.degree. C. The finely divided organotin compound has a particle size of not greater than about 20 microns and is suspended in an anhydrous carrier gas to which carrier gas has been added a gaseous fluoride compound. In an advantageous embodiment of the process the pyrolytically decomposable organotin compound is dibutyl tin oxide, the carrier gas is dry air and the added fluoride compound is dry hydrogen fluoride.

REFERENCES:
patent: 2566346 (1951-09-01), Lytle et al.
patent: 2567331 (1951-09-01), Gaiser et al.
patent: 3759743 (1973-09-01), Menke
patent: 3762902 (1973-10-01), Wagner et al.

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