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

1987-08-19

1989-03-28

Lindsay, Robert L.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65 602, 65 604, 65114, 428145, C03B 2706, C03C 1709

Patent

active

048160547

ABSTRACT:
Process for the manufacture of a toughened and/or bent sheet of soda-lime silica glass with reduced transmission, in particular a solar control glass sheet, wherein at least one transmission-reducing coating having a considerable content of a metal or a metal alloy from the elements with atomic numbers 22 to 28 in the periodic table is applied in such a thickness on at least one side of a transparent glass base that the light transmission of the glass carrier provided with the transmission-reducing coating is between 10 and 90% of that of the glass base alone, and a thermal toughening and/or bending process is carried out in air at a temperature of 580.degree. C. to 680.degree. C., preferably 600.degree. C. to 650.degree. C., whereby the transmission-reducing coating is produced by magnetron cathode sputtering before the thermal toughening and/or bending process means of the joint application of the metal or metal alloy from the elements with atomic numbers 22 to 28 and of silicon as a metal silicide coating with a silicon content of at least 45 atom %.

REFERENCES:
patent: 4166783 (1979-09-01), Turner
patent: 4170460 (1979-10-01), Donley
patent: 4329379 (1982-05-01), Terneu et al.
patent: 4404235 (1983-09-01), Tarng et al.
patent: 4668270 (1987-05-01), Ramus
patent: 4715879 (1987-12-01), Schmitte et al.

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