Corrosion resistant reflective articles

Details Corrosion resistant reflective articles Corrosion resistant reflective articles

1991-11-01

1993-08-31

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428457, 4289122, B32B 1706, B32B 1504

Patent

active

052407764

ABSTRACT:
A reflective article includes a glass substrate and a reflective metal coating deposited on the glass substrate including a reflective layer of silver and having a surface stratum which has a population of tin atoms which is augmented as compared with the population of tin atoms (if any) in an underlying subsurface stratum by at least one tin atom per hundred metal atoms thereby conferring on the reflective metal coating an enhanced resistance to corrosion. The reflective layer of silver is treated with an acidified aqueous solution of a stannous salt, which solution is free from opalescence, thereby to augment tin atom population in a surface stratum of the reflective metal coating.

REFERENCES:
patent: 4894278 (1990-01-01), Servais et al.
patent: 4981720 (1991-01-01), Servais
patent: 5050978 (1991-09-01), Servais

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