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.

Lightweight ballistic glasses are provided that provide effective protection from ballistic attack while also being lightweight enough for use in armored vehicles and aircraft. In addition to other embodiments, a multilayered lightweight ballistic glass is provided that meets the CEN 1063 Level BR7 standard while having a weight of no greater than about 155 kilograms per square meter (kg/m.sup.2), and a total thickness of less than about 75 mm.

Provided is a laminated glass in which creasing is reduced in the interlayer film and having excellent appearance although an interlayer film including a film having optical properties is used. A laminated glass according to the present invention comprises a first lamination glass member, a second lamination glass member, and an interlayer film, the interlayer film is arranged between the first lamination glass member and the second lamination glass member, the interlayer film includes a film having optical properties, and a second layer containing a thermoplastic resin, a maximum value of distance from an end part of the first lamination glass member to an end part of the film having optical properties is 15 mm or less, and in a 5-cm region inward from the end part of the first lamination glass member, a maximum value of height of recesses and projections of surface of the film having optical properties in cross section observation along a thickness direction of the film having optical properties is 100 ?m or less.

The present invention aims to provide an interlayer film for a laminated glass capable of exhibiting high deaeration properties even in a nip roll method and hardly forming air bubbles to enable the production of a highly visible laminated glass, and a laminated glass including the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a large number of recesses and a large number of projections on at least one surface, the recesses each having a groove shape with a continuous bottom and being regularly adjacent to each other in parallel with one another, the recesses each having a groove shape with a continuous bottom having a ratio (R/Sm100) of a radius of rotation R of the bottom to an interval Sm between the recesses of 15% or higher.

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.

A method for autoclave-free lamination of a composite pane.

A stack sequence of a substrate pane, at least one intermediate layer, and a cover pane is produced, a vacuum ring or a vacuum bag is placed around the stack sequence, the stack sequence is deaerated for a period of t8 min and at a temperature T from 0 C. to 30 C. by application of a negative pressure of p0.3 bar to the vacuum ring or the vacuum bag, the stack sequence is heated to a temperature T of 70 C. to 115 C., the stack sequence is deaerated for a period t of t8 min by application of a negative pressure of p0.3 bar to the vacuum ring or the vacuum bag, the stack sequence is cooled to a temperature T<70 C., the vacuum ring or the vacuum bag is aerated and removed, the stack sequence is heated to a temperature T from 40 C. to 120 C., the stack sequence is pressed together between at least two opposing calender rollers of a first calender unit over the entire width b of the stack sequence.

A polymer interlayer comprising a layer comprising a poly(vinyl acetal) resin having a residual hydroxyl content and a residual acetate content, and a plasticizer, wherein the residual hydroxyl content, the residual acetate content and the plasticizer are selected such that the polymer interlayer has at least one glass transition temperature less than about 20 C. and a peak tan delta of greater than 1.29, and a glass panel having a configuration of 2.3-mm glass//interlayer//2.3-mm glass and at 20 C. has a transmission loss, TL.sub.w, of greater than 41 decibels as measured by weighted average sound transmission loss at 2000 to 8000 Hz, and a transmission loss, TL.sub.c, of greater than 38 decibels at the coincident frequency is disclosed.

A monitoring system for vacuum production line for laminated glass. In some examples, the system includes at least one data acquisition card, a towline, a controller, and a maintenance robot. A pressure detector and a valve are provided for each of the plurality of laminated glass units on the production line. The towline includes a composite rotary joint and an evacuation tube disposed therein. The controller receives data from the pressure detectors and determines if any of the laminated glass units has a leak condition. If a vacuum leak is detected, the controller can alert to the operator, and can also sends the maintenance robot to shut off the valve for the leaking laminated glass unit.

A laminated glass includes at least two glass members and at least one adhesive film disposed in a stacked manner, where the glass members and the adhesive film are alternately disposed; and decorative layers provided on surfaces of the at least two glass members facing toward the at least one adhesive film. At least two of the decorative layers independently comprise an etched texture, an optical coating layer, and a pattern layer sequentially stacked, or at least two of the decorative layers independently comprise the etched texture, the pattern layer, and the optical coating layer sequentially stacked.

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.