Methods for preparing multi-layer optical laminates include placing an optical film that is free form an adhesive layer between first and second glass substrates that are free of an adhesive layer, placing this laminate under vacuum, and then heating the laminate under pressure to a temperature above the softening temperature of the optical film. The glass substrates are free of an adhesive layer but may include a silane surface treatment. The resulting multi-layer laminate is optically clear and does not show scattering of reflected light by the optical film.

The present disclosure relates to a method for manufacturing curved laminated glass and curved laminated glass manufactured by the same. The method includes providing a curved thick plate glass; providing a thin plate glass whose thickness is smaller than that of the curved thick plate glass; stacking a support film comprising a ductile layer and an elastic layer on one surface of the thin plate glass; positioning a lamination film or a bonding agent between the other surface of the thin plate glass and a concave surface of the curved thick plate glass; and laminating the thin plate glass so as to be aligned with a concave surface of the curved thick plate glass by elastically deforming the thin plate glass provided with the support film.

A method for laminating glass sheets is disclosed. A sandwich structure sheet moving in a heating furnace on rollers is heated by two-sided hot air blasting which is carried out by several successive blowing aperture sections, and, to reduce or prevent the formation of air bubbles in finished laminated glass, the heating of the rear end of the sandwich structure sheet is prevented by cutting off the hot air blasting of at least one blowing aperture section when the rear edge of the sandwich structure sheet approaches the blowing aperture section. An apparatus for laminating glass sheets is also disclosed, comprising a heating furnace, a pair of press rolls and means for establishing location data on the sandwich structure sheet. The heating furnace is provided with a roller track, a blower, a heating resistor, an air distribution conduit, and several successive blowing boxes with closing means.

A method according to this disclosure includes stacking a first glass sheet, a first interlayer, a film, a second interlayer, and a second glass sheet to provide a lamination stack, wherein the film has a first film edge that is a first distance from a first edge of the lamination stack to provide a first film cutback; deairing the lamination stack; and autoclaving the lamination stack to provide the laminated glazing, wherein the film shrinks during autoclaving wherein a seal formed during deairing is sufficient such that no air is introduced to the lamination stack during autoclaving and no air is left in the laminated glazing.

Novel multilayer laminates and lamination methods useful for the production of safety glass are disclosed in which an interlayer is provided between substrates and a porous sealant material is provided in a strip around the perimeter of the interlayer and at least partially in-between the substrates adjacent the interlayer. The space between the substrates is evacuated or de-aired through the porous sealant. The porous sealant is then made into a non-porous, continuous perimeter seal by pressing at or near room temperature or at a moderately elevated temperature to remove pores or gaps. The laminate is further processed at higher elevated temperatures either at or near atmospheric pressure or at elevated pressure to increase the bonding between the interlayer and the substrates and to eliminate most or all of the initial texture on the surfaces of the interlayer.

A laminated glazing includes a first glass sheet; at least one interlayer sheet made of thermoplastic polymer; optionally a solar-protection sheet or functional metal layer having reflective properties in the infrared region and/or in the solar radiation region; and at least one sheet of pressure-sensitive adhesive, in direct contact with a heat-sensitive functional sheet; a second glass sheet; the first glass sheet being in direct contact with the interlayer sheet; the second glass sheet being in direct contact with the sheet of pressure-sensitive adhesive.

An integrated glazing with a data transponder embedded between layers of glass is disclosed. The data transponder stores and processes data. The integrated glazing also includes a display unit including display elements disposed between layers of glass, communicating with the data transponder. The integrated glazing may comprise a data channel, a power channel, antenna and chip. An intelligent system is also disclosed including the integrated glazing, a reader device and a control system. The reader device is communicably coupled to the integrated glazing to generate signals based on the received data. The control system is communicably coupled to the integrated glazing and the reader device to process signals received from the reader device and perform pre-defined operations in response to the instructions and received signals.

The present invention aims to provide an interlayer film for a laminated glass that can, even when having a thickness at the thickest portion of 850 μm or more, exhibit sufficient deaeration properties in production of a laminated glass to provide a laminated glass with high transparency, and a laminated glass produced using the interlayer film for a laminated glass. Provided is an interlayer film for a laminated glass having a large number of recesses on at least one surface, the interlayer film for a laminated glass having a thickness T (μm) measured in conformity with JIS K-6732 (1996) and a maximum height roughness Ry (μm) measured in conformity with JIS B-0601 (1994) at a thickest portion, the thickness T and the maximum height roughness Ry satisfying the following expressions (1) and (1′):

Ry≥0.020×T+16.6   (1),

T≥850   (1′).

A manufacturing method of laminated curved glass includes steps: (1) providing a flat first glass plate and a flat second glass plate with a thickness of 0.1 mm to 2.2 mm; (2) impose the first glass plate and the second glass plate with strengthening treatment, the processed first glass plate and the processed second glass plate are in the shape of a flat plate, and the surface stress of the first glass plate or the second glass plate is 10-1000 MPa; and (3) Low temperature molding process, providing an adhesive film, and laminating the first glass plate processed in step (2), the adhesive film, and the second glass plate processed in step (2) in sequence, and then performing the low temperature press molding process to obtain the laminated curved glass. The method of the present bents the glass without high temperature to soften the glass.

Disclosed is a production method of a vehicular laminated glass plate, including: a step 1 of stacking an intermediate resin film between two curved glass sheets to form a stacked body; a step 2 of degassing the stacked body; and a step 3 of integrating the stacked body into one piece by heating and pressing treatment after the degassing, wherein a minimum value of a curvature radium of the curved glass sheets is in a range of 200 to 2900 mm; wherein a thickness of at least one of the curved glass sheets is in a range of 0.1 to 2.0 mm; and wherein the production method comprises, before the step 2, a step A of deforming the intermediate resin film by raising the temperature of the intermediate resin film so as to allow the intermediate resin film to follow a surface shape of the curved glass sheet.