| abstract |
Piece of noble metal coated in some areas for use in the manufacture of glass, in which an uncoated area of the piece of noble metal is in contact with a molten glass mass, which on the side separated from the molten mass of glass has a waterproof layer for H2 or H2 and O2, which - has a layer thickness greater than or equal to 1 mm, - is thermally stable, - is elastic, liquid or solid, and - contains at least one glass, or a mixture of glasses, a totally or partially crystallized material or a ceramic material. |