A process for making a symmetrical glazing that has the same nominal weight as an asymmetrical glazing that has been determined to afford enhanced glazing strength, glazing rigidity, or stone impact resistance wherein the symmetric glazing has improved acoustic attenuation over coincidence frequencies of the asymmetric glazing design.

The present disclosure relates to a film for bonding including an embossed surface, wherein the embossed surface has a Sku value of 5 or less, wherein the embossed surface has Sk, Spk, and Svk values, and when a total sum of the Sk value, the Spk value, and the Svk value is 100%, a sum of the Sk value and the Spk value is 50% or more, wherein the embossed surface has a Sz value of 30 to 90 μm, and wherein the film includes a polyvinyl acetal resin and a plasticizer.

A film for laminating includes an embossed surface, wherein a rad value of the embossed surface is 1 to 3 μm, where the rad value is calculated by [Formula 1] below: $\begin{array}{cc}\mathrm{rad}\left(\mathrm{um}\right)=\frac{1000}{\mathrm{Spc}\left({\mathrm{mm}}^{-1}\right)}& \left[\mathrm{Formula}1\right]\end{array}$ where, in [Formula 1], Spc is an arithmetic mean of curvatures of peak vertex on the embossed surface, which is evaluated by ISO_25178, wherein a number of peaks per 1 mm.sup.2 of the embossed surface (Spd value), which is evaluated by ISO_25178, is 200 or more and 1500 or less, and wherein a sum of maximum peak height and maximum valley depth of the embossed surface (Sz value) is 30 to 90 μm.

A vehicle window pane having a window pane body assembly having an outer side, which faces a vehicle environment, and an inner side, which faces a vehicle interior, and having a light-conducting layer; and a light source configured to couple its light into the light-conducting layer. An input coupling element coupling light emitted by the light source into the light-conducting layer is disposed on the inner side of the window pane body assembly.

A composite pane for a vehicle with an outer pane and an inner pane that are joined to one another via a thermoplastic intermediate layer and the composite pane is provided for separation of a vehicle interior for occupants from an external environment, wherein at least one radar sensor is integrated into the thermoplastic intermediate layer and is designed and arranged such that the radar sensor emits radar beams into the vehicle interior and receives reflected radar beams, and the radar sensor is connected to an evaluation unit for determining movement and/or presence of persons or animals in the vehicle interior.

The present invention pertains to a laminated glass for a vehicle, the laminated glass including a first glass sheet, a second glass sheet and an intermediate film sandwiched between the first glass sheet and the second glass sheet, in which: the total thickness of the first glass sheet, the second glass sheet and the intermediate film is 4.0 mm or more; the first glass sheet is formed of a borosilicate glass containing, in terms of oxide by molar percentage, 1.0% or more of B.sub.2O.sub.3; and when a radio wave (TM wave) with a frequency of 79 [GHz] is made incident at an incident angle of 60° to the first glass sheet, the transmission property S21 is -4.0 [dB] or more.

A multilayer glass stack for a vehicle windshield with improved durability is described. The multilayer glass stack includes an external-facing glass layer, an internal-facing glass layer, and an adhesive interlayer positioned between the external-facing and internal-facing glass layers. The external-facing glass layer may include borosilicate and/or does not include soda lime glass. Methods of manufacturing the multilayer glass stack are also described.

A glass unit for an illuminated vehicle roof has a glass pane, a plastic film and an outer and an inner polyurethane layer. These components are stacked one on top of the other in a planar manner in the following order: glass pane, inner polyurethane layer, plastic film, outer polyurethane layer. Furthermore, the plastic film has a lower refractive index than the adjacent outer polyurethane layer.

A process for preparing a laminated glazing comprises providing a first glass sheet formed into a desired shape with a first thickness by a first procedure and providing a second glass sheet formed into a desired shape with a second thickness by a second procedure with an interlayer located therebetween, and laminating together the first and second glass sheets and the interlayer at a temperature and pressure sufficient to adhere the interlayer material to the glass sheets and in which the process further comprises applying a mould which is shaped substantially the same as the first glass sheet, against the second glass sheet, during laminating to adhere the interlayer material to the two glass sheets such that after lamination, the shape of the second glass sheet is substantially the same as the shape of the first glass sheet.

A composite glass pane that contains two glass panes or two polymer panes or one glass pane and one polymer pane and has at least one polymer film bonded therebetween, wherein a first type of polymer film having a first stiffness is arranged in a first, larger areal region of the composite glass pane and a second type of polymer film having a second, higher stiffness than the first polymer film is arranged in at least one second areal region.