Saint-gobain Vitrage International

Saint-gobain Vitrage International C/o Saint-gobain Recherche

Franz Kramling

Bernard Letemps

Claude M Didelot

Frederic Weber

Herve Charrue

Friedrich-Wilhelm Berndsen

Hans-Werner Kuster

Gerhard Holzer

Heinz J Schilde

Friedrich Triebs

Friendrich Triebs

A method for the preparation of glass sheets with a view to laminating them consists of curving the glass sheets by causing them to pass one after another along a curved trajectory, then cooling them by passage between blowing chests, and of dispatching them by batches to the assembling station, and a laminated pane, the sheets of which have, in the central zone, a core compressive stress of from 1 to 50 MPa.

Glazing pane and method for its production

A metal retaining or fixing member (6) is fixed to a laminated glazing (1) with the aid of a screwed assembly. The two glass sheets (2,3) forming the laminated glazing (1) are provided with holes (15,16) before being assembled with the thermoplastic interlayer (4), in such a way that following the manufacture of the laminated glazing, they are eccentric with respect to one another. Prior to the screwing down of the assembly, the empty space separating the parts (9,18) of said assembly located within the holes 15,16) and the walls thereof is filled with curable adhesive (20).

Screwed fixing of a retaining or fixing member to a laminated glazing

A vertically adjustable glass pane for automobiles, especially a door window pane, is of laminated glass consisting of two thermally toughened single glass sheets, each 1.5 to 3 mm thick, and of a thermoplastic intermediate layer. Both the glass sheets have, in their edge region, tensile stresses in the core having a value from 27 to 57 MN/m.sup.2 for a sheet thickness of 1.5 mm and 20 to 47 MN/m.sup.2 for a sheet thickness of 3 mm. In the middle area within the peripheral region the glass sheets have tensile stresses in the core which, in the case of a glass sheet of 1.5 mm thickness, have values of 25 to 42 MN/m.sup.2 and, with a glass thickness of 3 mm, values of 17.5 to 33 MN/m.sup.2. Laminated glass panes of this type have a comparatively high strength in the peripheral region and low strength in the middle area. They possess excellent properties both from a structural design standpoint and also from the standpoint of safety in case of accident.

Vertically adjustable lateral glass pane for automobiles

A vertically adjustable composite motor vehicle side glazing, particularly a door window glazing, is made from composite glass including two 1.5 to 3.5 mm thick thermally tempered individual glazings with a thermoplastic intermediate layer. Each individual glazing has in the marginal area tensile stresses in the core, which in the case of a glazing thickness of 2 mm amount to 54 to 76 MN/m.sup.2 and for a glazing thickness of 3 mm amount to 46.7 to 71.2 MN/m.sup.2. In the central zone within the marginal area the individual glazings have tensile stresses in the core, which in the case of a glazing thickness of 2 mm amount to 38 to 67 MN/m.sup.2, while for a glazing thickness of 3 mm amount to 33 to 60 MN/m.sup.2. Such composite glazings have high strength in the marginal area and a low strength in the central zone. Therefore they have excellent characteristics both from the static standpoint and from that of accident safety.

Vertically adjustable side glazing for motor vehicles

An electrically heatable car glazing (1) of laminated glass has a transparent surface coating (8) as the heating resistor. The outer glass plate (2) is provided, along the circumference of its inner side, with a frame-like heat-curing coating (6), and bus bars (7) of an electrically conductive heat-curing paint are provided on the frame-like coating. The surface coating (8) is placed over the bus bars (7), and metal foil bands (10) are placed above the bus bars (7) on the surface coating. The end portions (11) of the metal foil bands (10) are provided with a tear-proof plastic envelope (12), which is bonded to the glass plate (2).

Growing community of inventors

Aachen, Germany

Franz Kramling