There is provided an interlayer film for laminated glass with which the production efficiency of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention includes an interlayer film body for lamination glass, and a printed part displayed by printing on a first surface of the interlayer film body for laminated glass, and the printed part is a guide for a bonding position to a lamination glass member, or product information of the interlayer film for laminated glass.

The present disclosure relates to a method of manufacturing a curved joined glass sheet having excellent optical quality by adjusting a radius of curvature of a curved thick glass sheet and a radius of curvature of a curved thin glass sheet. The method includes preparing a curved thick glass sheet having a first radius of curvature, manufacturing a curved thin glass sheet having a second radius of curvature by heating and molding a flat plate thin glass sheet, providing a joining film or an adhesive agent between a concave surface of the curved thick glass sheet and a convex surface of the curved thin glass sheet, and elastically deforming the curved thin glass sheet to join the elastically deformed curved thin glass sheet so as to match with the concave surface of the curved thick glass sheet.

Provided is an interlayer film for laminated glass that can improve bending rigidity and sound insulating properties of laminated glass and can inhibit the occurrence and growth of foam in the laminated glass. An interlayer film for laminated glass according to the present invention has a single-layer structure or a two or more-layer structure and includes a first layer containing a polyvinyl acetal resin and a plasticizer, in which a glass transition temperature of the first layer is 10° C. or lower, and an elastic modulus of the first layer at 30° C. is 285,000 Pa or greater.

A film for laminating including an embossed surface, wherein the embossed surface includes a plurality of convex parts and a plurality of concave parts disposed between the plurality of convex parts, wherein each of the plurality of convex parts is surrounded by the plurality of concave parts and does not include a convex part, wherein each of the plurality of convex parts has an average area of 4.0 mm.sup.2 or less, wherein an absolute value of Skewness (Ssk) of the embossed surface is more than 0, and 1 or less, and wherein Ar of the embossed surface is 1.001 to 2, where Ar is calculated by the following Formula 1:

[00001]$\begin{array}{cc}\mathrm{Ar}=\frac{\mathrm{As}}{\mathrm{Ac}}& \left[\mathrm{Formula}1\right]\end{array}$ where, in the Formula 1, As is an average surface area of surface profiles of the plurality of convex parts comprised in a unit area (1 cm.sup.2) of the embossed surface and Ac is an average area occupied by the plurality of convex parts comprised in a unit area (1 cm.sup.2) of the embossed surface, is disclosed.

The present invention provides multiple layer interlayers having a soft inner polymer layer and relatively stiff outer layers that can be laminated without unacceptable optical distortion and used in various multiple layer glass panel type applications. Multiple layer interlayers of the present invention have surface topography that is formed by controlling the melt fracture that occurs at the exposed surface of the interlayer, or individual layers of the multiple layer interlayer, during formation of the interlayer. By precisely controlling the surface topography of the interlayer, lamination of the interlayer with a rigid substrate does not lead to unacceptable optical distortion caused by the transfer of the surface topography through outer, stiffer layers into softer, internal layers of the interlayer.

A composite pane for a motor vehicle, in particular the front pane, is formed from a first pane and a second pane, which are adhered to one another by way of a film. A coating reflecting infrared rays is applied to the film. The coating has at least one cut-out, within which a transponder is arranged between the two panes. A motor vehicle has a composite pane as described above.

The present invention provides an interlayer film for a laminated glass capable of providing a laminated glass that reduces the occurrence of optical distortion, a laminated glass including the interlayer film for a laminated glass, and a method for producing the interlayer film for a laminated glass. Provided is an interlayer film for a laminated glass, having a maximum thickness curvature in a width direction of the interlayer film for a laminated glass of 0.010 m.sup.−1 or less.

A laminated glass pane includes two glass or polymer panes and at least one connecting polymer film or connecting laminate adhesively bonded therebetween, wherein a cut-out in the connecting polymer film or in the connecting laminate is provided in a partial surface area of the laminated glass pane, and an electronic functional module that has a thickness smaller than the thickness of the connecting polymer film or the connecting laminate is accommodated in the cut-out, wherein the functional module has an electronic functional element that is fixed on a separate thin carrier polymer film on one of the glass or polymer panes, wherein an antenna and/or conductor structure that has a spiral or polygonal-spiral conductor path that surrounds the functional element is printed onto the carrier polymer film.

Interlayers that exhibit superior properties and that provide desirable optical properties when incorporated into laminates, such as windshields, windows or other glazings containing a holographic optical element (HOE) are disclosed. The interlayers, when used in a laminate in conjunction with the HOE film, maintain and do not detract from the HOE film properties.

Laminated glass for a vehicle includes a vehicle-interior side glass plate, a vehicle-exterior side glass plate, an interlayer film that bonds the vehicle-interior side glass plate and the vehicle-exterior side glass plate, and a structure sealed in the interlayer film. The interlayer film includes a first interlayer film bonded to the vehicle-interior side glass plate, a second interlayer film bonded to the vehicle-exterior side glass plate, and a third interlayer film located between the first interlayer film and the second interlayer film to enclose an outer periphery of the structure. Where a film thickness of the first interlayer film or the second interlayer film, whichever is thinner, is denoted as ti, and a thickness of the structure is denoted as ts, ti/ts≥0.4 is satisfied. Where a flexural modulus of the structure is denoted as E.sub.1 [MPa], a relationship between ts and E.sub.1 satisfies E.sub.1×ts.sup.3≥500.