Glass composition for use in glazes of enamels.

(22) Entrance day 17.11.89 (24) Lopedag 17.11.89 (62) Divisional / separate application no.

(71) (73) Soker / Patentee Johnson Matthey Public Limited Company,

Hatton Garden,

London EC1N 8JP, England, GB.

(83) (86) Int. Filing day and int. search no .-- (85) Returning day - (41) Generally available from 21.05.90 NT no.

(74) Deputy Dag Dawes, (30) Priority requested 19.11.88, GB, 8827095,

Bryn 1 Aarflot AS, Oslo. 15.09.89, GB, 8920941.

(54) Title of the invention Glass mixture for use in glaze and enamel.

(57) Summary

A glass melt blend consisting by weight of substantially 45-65% Bi₂O₃, 25-36% SiO₂, 4-6% B₂O₃, 3-6% TiO₂ , 1-3% Na₂O, 0.5-2% K₂O, 2-6% Li₂0.1-3% A1₂O₃, 0-1% ZrO₂, 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO and 0-0.5% CdO can be used to make a glaze or enamel mixture. especially for application to glass, so that the mixture is then burned in contact with the surface of a mold or with one