CONTAINER GLASS Russian patent published in 2001 - IPC

FIELD: glass industry, more particularly manufacture of bottles and other glass containers for preservatives and food products. SUBSTANCE: container glass comprises, wt %: SiO₂, 65- 73.4; Al₂O₃, 1.1-5.5; Fe₂O₃, 0.2-2.5; Na₂O 10 - 14; K₂O, 0.03-0.035; CaO, 8-13; MgO, 0.06- 1.2; TiO₂, 0.04-1.4; Cr₂O₃, 0.10-0.5; SO₃, 0.7-0.5; BaO, 0.01-0.1; MnO, 0.01- 1.25; and P₂O₅, 0.01-0.1. EFFECT: higher physico-chemical and physico-mechanical properties of container glass, reduced labor expenditure and lower power consumption, improved quality of products and wider range of raw materials used in glass industry. 2 tbl