Process for the manufacture of a toughened and/or bent sheet of glass with a silver coating
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United States of America Patent
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Feb 26, 1991
Issued Date -
N/A
app pub date -
Nov 3, 1989
filing date -
Mar 13, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for the manufacture of a toughened and/or bent, infrared-reflecting sheet of glass made of sodalime silicate glass, in which on at least side of a transparent glass base a silver coating is applied and on its side facing away from the glass base at least one anti-reflection coating made of metal oxide is applied and a thermal toughening and/or bending process at a temperature of 580.degree. C. to 680.degree. C., preferably 600.degree. C. to 650.degree. C., is carried out, characterised by the fact that a silver coating and an outer coating made of a metal or a metal alloy are applied onto the essentially flat glass base and by the fact that after this the toughening and/or bending process is carried out, in which the outer coating is converted with an increase in volume into an essentially absorption-free metal oxide, forming at least part of the anti-reflection coating, with an index of refraction .gtoreq.1.7, sheet of glass produced according to this and its application.
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