C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
49/87
C03B 18/06 (2006.01)
Patent
CA 1194697
ABSTRACT OF THE DISCLOSURE A continuous ribbon of glass is reduced in thickness while sup- ported on molten metal by imposing super-atmospheric pressure over a molten glass layer and subsequently increasing the width of the ribbon by forces engaging the edges of the ribbon, whereby the optical power of any residual surface defects is reduced.
413003
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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