Process for the manufacture of a toughened and/or bent sheet of

Details Process for the manufacture of a toughened and/or bent sheet of Process for the manufacture of a toughened and/or bent sheet of

1989-11-03

1991-02-26

Woodard, Joye L.

Glass manufacturing

Processes

With coating

65 604, 65 605, 65104, 65106, C03C 1736, C03B 23023

Patent

active

049958950

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.

REFERENCES:
patent: 4715879 (1987-12-01), Schmitte et al.
patent: 4718932 (1988-01-01), Pharms
patent: 4749397 (1988-06-01), Chesworth et al.
H. Gonde Dittmer, "Die Anwendung der Vakuumbeschichtungstechnik in der Glasindustry", Sprechsaal, vol. 119, No. 9, 1986, pp. 745-749, English Translation of Above Article.

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