Saint-gobain Glass France

Laurent Teyssedre

Pierre Jeanvoine

Dominique Sachot

Lionel Homo

Catherine Jacquiod

Jean-Marc Berquier

Marie-Jos&eacute; Azzopardi

Marie-José Azzopardi

The invention relates to a glass composition of silica-soda-lime type colored blue which comprises the coloring agents below in a content varying within the following limits, by weight: the glass exhibiting a redox factor of less than 0.35, a dominant wavelength &#x3bb;of between 485 and 489 nm, an excitation purity of less than 13% and a selectivity at least equal to 1.1 under a thickness of between 3 and 5 mm. It also relates to the glass sheet obtained from the abovementioned composition, said sheet being intended in particular to form an automobile window or for the construction industry.

Blue glass composition intended for the manufacture of windows

The invention relates to a dark gray soda-lime silicate glass composition which includes a coloring part essentially consisting of the compounds below in contents varying within the following weight limits: said composition being free of selenium, having a redox of 0.40 or less, and the glass having a light transmission factor (T) under illuminant A of 50% or less and an overall energy transmission factor (T) of less than 45%, these being measured for a thickness of 3.85 mm.

Dark grey soda-lime silica glass composition which is intended for the production of glazing

The invention relates to a dark gray soda-lime silicate glass composition which includes a coloring part essentially consisting of the compounds below in contents varying within the following weight limits: or said composition being free of selenium, having a redox of 0.40 or less, and the glass having a light transmission factor (T) under illuminant A of 50% or less and an overall energy transmission factor (T) of less than 45%, these being measured for a thickness of 3.85 mm. The invention also relates to glass sheets, optionally thermally toughened, obtained from the aforementioned composition and to glazing comprising at least one of these sheets, especially as 'privacy' windows for automobiles.

Dark grey soda-lime-silica glass composition which is intended for the production of glazing

Glass composition intended for the manufacture of windows that absorb ultraviolet and infrared radiation, comprising the oxides below, in contents varying within the following limits by weight: characterized in that it additionally comprises the absorbent agents below, in contents varying within the following limits by weight: the glass having a redox factor of 0.23 or less and containing no tungsten oxide WO.

Glass composition for production of glazing absorbing ultraviolet and infrared radiation

The invention relates to a gray soda-lime silicate glass composition which comprises the following coloring agents with contents varying within the following weight limits: the NiO/CoO weight ratio being between 3.5 and 6 and the glass having an overall light transmission (TL) under illuminant Dof between 20 and 60% measured for a thickness of 6 mm. The invention also relates to a glass sheet, optionally thermally toughened, obtained from the aforementioned composition and glazing comprising at least one of these sheets, especially for buildings.

Composition for gray silica-sodium calcic glass for producing glazing

A glass composition of the soda-lime-silicate type is described which includes, by weight, the following coloring agents: 0.2-0.45% of FeO(total iron), 2-8 ppm of Se, 0-20 ppm of CoO, and 0-80 ppm of NiO. The coloring agents satisfy the relationship, 0.7&#x3c;(200&#xd7;NiO) +(5000&#xd7;Se)+(6&#xd7;Fe)/(875&#xd7;CoO)+(24&#xd7;Fe)&#x3c;1.6 in which the NiO, Se, Fe, CoO and Fecontents are expressed in ppm, Feand Feare the content of ferric iron expressed in the form of FeOand FeO, respectively. The composition has a redox from 0.28 to 0.5, an overall light transmission under illuminant A (T) greater than 65% and a selectivity (SE) of greater than 1.25, when measured for a thickness of 3.85 mm. A window formed from at least one glass sheet produced from the aforementioned composition is also described.

Composition of glass for the production of glazing

The subject of the invention is a gray glass composition of the soda-lime-silicate type having an overall light transmission under illuminant A (T) greater than 67% for a glass thickness equal to 3.85 mm, which comprises the constituents below within the following limits by weight: and the coloring agents below within the following limits by weight: 

Grey glass composition for production of windows

The substrate of the invention is coated with a mesoporous film. It is characterized in that chemical molecules, especially hydrophobic/oleophobic molecules, are bonded to the mesoporous film. The invention also relates to a process for manufacturing this substrate, in which: the substrate is brought into contact with a composition formed from organic assembling groups and from a precursor for the mesoporous material; the precursor precipitates around the assembling groups and polymerizes; and the assembling groups are removed. This process is distinguished by the fact that chemical molecules, such as hydrophobic/oleophobic molecules, are then brought into contact with the mesoporous film. The invention also relates to glazing, for buildings or transportation vehicles, which includes this substrate.

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Paris, France

Laurent Teyssedre