Back to results
US 8,984,910 B2Granted
Lead-containing flat glass produced by a metal bath float glass process
AssigneeSaint-Gobain Glass France
InventorsRamon Rodriguez Cuartas, Christian Bouigeon, Juan Luis Fernandez Suarez
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for manufacturing flat glass rich in lead oxide, comprising the continuous floating, in a float plant with a neutral gaseous atmosphere, of a glass comprising at least 30% lead oxide by weight on a bath of molten metal having a higher density than that of the glass. The invention allows flat glass rich in lead, useful for protection against X-rays, to be produced.
Claims17
A process for manufacturing flat glass rich in lead oxide, comprising:
- continuously floating a ribbon of glass containing at least 30% lead oxide by weight on a bath of molten metal comprising tin which bath of molten metal has a density higher than that of the glass;
- wherein said floating occurs in a float plant with a neutral gaseous atmosphere above the ribbon of glass and bath of molten metal.
A process for manufacturing flat glass rich in lead oxide, comprising:
- continuously floating a ribbon of glass containing at least 30% lead oxide by weight on a bath of molten metal comprising tin which bath of molten metal has a density higher than that of the glass;
- wherein said floating occurs in a float plant that contains an atmosphere above the ribbon of glass and bath of molten metal that consists essentially of neutral gases, but which may contain up to 5 ppm oxygen.
Dependencies are inferred from the claim text.