Glaverbel

Agc Flat Glass Europe, S.a.

Agc Glass Europe

Laurent Delmotte

Daniel Decroupet

Dominique Coster

Marc Van Den Neste

Marc Foguenne

Jean-Pierre Robert

Veronique Dieu

Olivier Fontaine De Ghelin

Benoît Cherdon

The glass according to the invention has a soda-lime type composition to which are added colouring elements present in the following proportions by weight: 

Low-luminous-transmittance glass

The present invention relates a colored soda-lime glass which comprises iron in a quantity which, expressed in weight of the oxide FeOin relation to the total weight of glass, is greater than or equal to 0.5%, and less than or equal to 1.0 % (quantity of total iron), a ratio of Fe2+/total Fe (redox ratio) in the range of between 20 and 65 % and titanium in a quantity which, expressed in weight of TiOin relation to the total weight of glass, is greater than or equal to 1.0 %. This glass has a light transmission (TLA4) in the range of between 15 and 55 %, a total transmission in the ultraviolet (TUV4) of less than or equal to%, and a dominant wavelength in transmission &#x3bb;D of less than or equal to 491 nm. This glass can be used, for example, as side glazing, rear-view window, roof glazing or opening roof of a motor vehicle.

Coloured soda-lime glass

The present invention relates to a colored soda-lime glass which comprises iron in a quantity which, expressed in weight of the oxide FeOin relation to the total weight of glass, is greater than or equal to 0.5%, and less than or equal to 1.0% (quantity of total iron), a ratio of Fe/total Fe (redox ratio) in the range of between 20 and 65%, cerium in a quantity which, expressed in weight of CeOin relation to the total weight of glass, is greater than or equal to 0.1%, and titanium in a quantity which, expressed in weight of TiOin relation to the total weight of glass, is greater than or equal to 0% and less than 0.2%. This glass has a light transmission (TLA4) in the range of between 15 and 55%, a total transmission in the ultraviolet (TUV4) of less than or equal to 30%, and a dominant wavelength in transmission (&#x3bb;D) of less than or equal to 491 nm. This glass can be used, for example, as side glazing, rear-view window, roof glazing or opening roof of a motor vehicle.

The invention concerns a soda-lime glass. Said colored glass contains at least 5 parts per million of Co by weight and 0.5 to 0.9 wt. % FeOoxide. The amount of ferrous iron by weight of Featoms relative to the total weight of iron atoms present in the glass ranges between 25 and 45%. Said glass further comprises chromium and/or vanadium. The glass has a light transmission factor TLA4 ranging between 10 and 50% and an energy transmission wavelength less than 491 nm. Said glass is particularly suited for producing blue-tinted glazing for motor vehicles.

The invention relates to blue colored sodiocalcic glass. It contains 0.15 to 1.1 wt. % FeO, has a redox that does not exceed 45%, exhibits a dominant wavelength (&#x3bb;) in the range of 490 and 493 nm and a luminous transmission (TLA4) in addition to an excitation purity (P) satisfying the relation P&#x3e;&#x2212;0.3&#xd7;TLA4+24.5. The inventive glass is particularly suitable for windscreens, side windows and rear-window defoggers in motor vehicles and glazing in buildings.

Blue sodiocalcic glass

The invention concerns a colored soda-lime glass comprising an amount of MgO more than 2%, an amount of FeOless than 1.1%, and amount of MnOless than 1300 ppm, an amount of Co more that 55 ppm and it has a selectivity (SE4) higher than 1.2 and a dominant wavelength &#x3bb;not exceeding 490 nm and excitation purity (P) more than 10%. Said glass is particularly suited for rear side windows, back windows and glass sun roofs for motor vehicle.

Colored soda-lime glass

A process for forming a vitreous layer on a refractory surface, in which a vitrifying agent is projected by means of an apparatus against the surface with an oxygen-containing carrier gas and simultaneously with a combustible gas, the latter generating a combustion flame, characterized in that the vitrifying agent comprises particles of cullet and in that the flame generated provides, at least partially, the heat needed to form the vitreous layer on the surface. The vitreous layer thus formed makes it possible to prevent the build-up, on the refractory walls of high-temperature ovens, of dust or by-products coming from the raw materials and/or their reaction products.

Growing community of inventors

Jumet, Belgium

Laurent Delmotte