Glass composition for use in glazes or enamels
AssigneeJohnson Matthey Public Limited Company
InventorJohannes J. W. Murkens
Life of this patent
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Abstract
A glass flux composition consisting essentially by weight of 45-65% Bi.sub.2 O.sub.3, 25-36% SiO.sub.2, 4-6% B.sub.2 O.sub.3, 3-6% TiO.sub.2, 1-3% Na.sub.2 O, 0.5-2% K.sub.2 O, 2-6% Li.sub.2 O, 0-3% Al.sub.2 O.sub.3, 0-1% ZrO.sub.2, 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO is useful for preparing a glaze or enamel composition especially for application to glass such that the composition is then fired in contact with a mould surface or with another glass surface.
Claims8
A glass flux composition consisting essentially by weight of 45-65% Bi.sub.2 O.sub.3, 25-36% SiO.sub.2, 4-6% B.sub.2 O.sub.3, 3-6% TiO.sub.2, 1-3% Na.sub.2 O, 0.5-2% K.sub.2 O, 2-6% Li.sub.2 O, 0-3% Al.sub.2 O.sub.3, 0-1% ZrO.sub.2, 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO.
Dependencies are inferred from the claim text.