Method for obtaining a coating of a preferred composition on a s

Details Method for obtaining a coating of a preferred composition on a s Method for obtaining a coating of a preferred composition on a s

1981-11-30

1983-02-15

Hoffman, James R.

Coating processes

Measuring, testing, or indicating

427110, 427160, 427168, B05D 112, B05D 300, C03C 1723

Patent

active

043741568

ABSTRACT:
Methods are disclosed for obtaining a preferred multi-component metallic oxide coating on the surface of a glass substrate by pyrolytic coating techniques. In a pyrolytic coating technique, a heat decomposable, non-homogeneous, dry powder mixture of organic based metallic salts is sprayed against the surface of the glass substrate while the surface is at a temperature in the range from 700.degree. F. (370.degree. C.) to 1200.degree. F. (650.degree. C.). In accordance with the general teachings of this specification, the methods are initiated by selecting a preferred composition for the metallic oxide coating to be developed on the surface of the substrate. Different spraying compositions under a single set of spraying conditions or a single spray composition under different sets of spraying conditions are applied to test substrates to develop test specimens. The chemical composition of the coating developed on the test specimens is determined and the spraying composition or spraying conditions which produced the preferred composition is then selected for use in spraying commercial quantities of a glass substrate.

REFERENCES:
patent: 3081200 (1963-03-01), Tompkins
patent: 3852098 (1974-12-01), Bloss et al.
patent: 4182783 (1980-01-01), Henery
patent: 4188199 (1980-02-01), Van Caethem et al.
patent: 4217392 (1980-08-01), Vong
patent: 4230271 (1980-10-01), Marcault

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