Method for the manufacture of a tempered and/or curved glass pan

Details Method for the manufacture of a tempered and/or curved glass pan Method for the manufacture of a tempered and/or curved glass pan

1986-11-05

1987-12-29

Kellogg, Arthur

Glass manufacturing

Processes

With coating

65 604, 65106, 65114, C03C 1700

Patent

active

047158794

ABSTRACT:
Method for the manufacture of a prestressed and/or curved glass pane of soda-lime-silica glass having reduced transmission in a prescribable spectral range (in prescribable spectral ranges), in particular a sunshade pane, whereby at least one metal layer having a majority content of a metal or of a metal alloy from the elements having the atomic numbers 22 through 28 of the periodic table is applied to at least one side of a glass carrier and a protective layer of at least one metal oxide or mixed metal oxide is applied to that side thereof facing away from the glass carrier, and whereby a thermal prestressing and/or bending process is carried out in air at a temperature of 580.degree. C. through 680.degree. C., preferably 600.degree. C. through 650.degree. C., characterized in that both the metal layer as well as the protective layer are applied to the essentially planar glass carrier before the thermal prestressing and/or bending process; and in that the protective layer is applied with an oxygen deficit x, referrred to a metal atom of the metal oxide or, respectively, oxides, of 0.05.ltoreq.x.ltoreq.0.4 and in a thickness from 10 nm through 100 nm, being applied in such a composition that no noteworthy oxygen diffusion into the metal layer occurs during the prestressing and/or bending process.

REFERENCES:
patent: 4170460 (1979-10-01), Donley
patent: 4329379 (1982-05-01), Terneu et al.

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