Glaverbel

Daniel D'Hont

Camille Dupont

Soda lime glass includes glass forming constituents for soda lime glass; and coloring agents including iron, cobalt, selenium and chromium express in the form indicated and in an amount as percent by weight of the soda lime glass as follows:

Dark grey soda-lime glass

Soda lime glass including glass-forming constituents for soda lime glass; and coloring agents including iron, cobalt and selenium present in a form and in an amount as percent by weight of the soda lime glass as follows:

Very dark grey soda-lime glass

Grey soda-lime glass is composed of main glass-forming constituents together with iron, selenium, cobalt and chromium as colouring agents in the following quantities:

Growing community of inventors

Maffle, Belgium

Daniel D'Hont