This disclosure is related to the field of polymer interlayers for multiple layer glass panels and multiple layer glass panels having at least one polymer interlayer sheet. Specifically, this disclosure is related to the field of polymer interlayers comprising multiple thermoplastic layers which resist the formation of optical defects.

An insulating glazing unit may be configured to provide both visible transparency and bullet-resistance. The bullet resistant properties of the unit may be achieved through the combination and coordination of different materials forming the panes of the unit. For example, the insulating glazing unit may include multiple laminate panes separated by a spacer. Each laminate pane may include at least two transparent rigid substrates joined by a layer of laminate material. The laminate material used in one laminate pane may be different than the laminate material used in another pane. For example, one pane may utilize a laminate material that is soft and flexible. This may help absorb and dissipate the impact of a projectile. By contrast, another laminate pane may utilize a laminate material that is stiff and rigid. This may help provide a final stopping force to a projectile.

A polymer film comprising polyvinyl acetal and a laminated glass manufactured using the same are provided. At least one surface of the polymer film has a void volume (Vv) value at a material ratio of 10% ranging from 3 μm.sup.3/μm.sup.2 to 34.3 μm.sup.3/μm.sup.2, wherein the void volume (Vv) and material ratio are defined in accordance with ISO 25178-2:2012.

The polyvinyl acetal resin composition includes: a polyvinyl acetal resin, a plasticizer, a metal salt compound, and a benzotriazole-based compound, wherein the metal salt compound is a metal salt of hydroxyl carboxyl acid having two to sixteen carbon atoms, wherein the metal salt compound is included in an amount of less than 0.05 wt % based on a total weight of the polyvinyl acetal resin composition, and wherein the metal salt compound is included in an amount of 16 parts by weight or less based on the benzotriazole-based compound of 100 parts by weight.

A walk-on laminated safety glass pane having an anti-slip surface is decribed. The laminated safety glass pane includes at least two glass panes, which are permanently bonded to each other using a polymeric layer.

A polymeric intermediate layer is applied to one surface of the laminated safety glass pane.

A glass pane having an anti-slip surface is applied to the polymeric intermediate layer.

An elastic polymeric gasket is inserted circumferentially in the edge region of the polymeric intermediate layer.

The laminated safety glass pane has a drilled hole and the drilled hole is sealed at subatmospheric pressure.

The present disclosure relates to a glass cover, particularly a glass cover used in a vehicle roof, which includes a glass pane, anti-shatter layer means arranged on an underside of the glass pane, and an encapsulation formed on an edge region of the glass pane wherein the anti-shatter layer means covers the whole underside of the glass pane and extends into the encapsulation.

An interlayer structure having a cellulose ester layer for use in structural laminates is described herein. The cellulose ester layer provides rigidity and support to multilayer interlayers comprising an array of different layers. Due to the diverse properties of the cellulose ester layers, the present interlayers can be useful in producing structural laminates having high stiffness and which possess good optical clarity for a variety of applications, including outdoor structural applications.

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.

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.

Provided is an interlayer film for laminated glass with which transmitted double images in the laminated glass can be suppressed. An interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, and the other end has a thickness larger than a thickness of the one end, and when an inclination of approximate line A and a maximum value of absolute values of deviation in partial wedge angle are calculated according to determination of a specific formula of approximate line A and calculation of deviation in partial wedge angle, the inclination of approximate line A is −0.05 mrad/m or less in at least one section A, and the maximum value of absolute values of deviation in partial wedge angle is 0.2 mrad or less.