The glass panel unit includes a first glass panel, a second glass panel, a seal, an evacuated space, and a spacer. The second glass panel is placed opposite the first glass panel. The seal with a frame shape hermetically bonds the first glass panel and the second glass panel to each other. The evacuated space is enclosed by the first glass panel, the second glass panel, and the seal. The spacer is placed between the first glass panel and the second glass panel. The spacer is a stack of two or more films. At least one film of the two or more films contains a polymer having a viscoelastic coefficient at 400 C. larger than 500 MPa.

A spacer for insulating glass panes has a profile body configured as a closed hollow profile substantially closed in cross section, the profile body having first and second side walls in parallel spaced apart from each other, an inner wall extending between the first and second side walls, and an outer wall extending from the first to the second side wall spaced apart from the inner wall. The outer wall comprises a first wall section aligned substantially parallel to the inner wall, second and third wall sections arranged on both sides of the first wall section, the latter, in cross section to the axial direction of the body, aligned at an obtuse angle to the first wall section and to the respective adjacent side wall, and connect thereon. The spacer includes an integral, reinforcing element, extending from the first side wall over the outer wall to the second side wall.

The glass panel unit includes a first glass panel, a second glass panel, a seal, an evacuated space, and a spacer. The second glass panel is placed opposite the first glass panel. The seal with a frame shape hermetically bonds the first glass panel and the second glass panel to each other. The evacuated space is enclosed by the first glass panel, the second glass panel 30, and the seal. The spacer is placed between the first glass panel and the second glass panel. The spacer contains polyimide having benzoxazole structures.

A spacer for insulating glazing units is presented. The spacer has a polymeric main body with features that include two parallel side walls that are connected to one another by an inner wall and an outer wall. The side walls, the inner wall, and the outer wall surround a hollow chamber. According to one aspect, the polymeric main body has a glass fiber content of 0 wt.-% to 40 wt.-%, to which 0.5 wt.-% to 1.5 wt.-% of a foaming agent is added to form hollow spaces that provide a weight reduction of the polymeric main body of 10 wt.-% to 20 wt.-%.

A spacer for insulating glazings includes a polymeric main body including first and second pane contact surfaces, a glazing interior surface, an outer surface and a hollow chamber. The first and second pane contact surfaces run opposite one another and parallel to one another. The glazing interior surface and the outer surface are connected to one another via the first pane contact surface and the second pane contact surface. The hollow chamber is enclosed by the glazing interior surface, the outer surface, the first pane contact surface, and the second pane contact surface. The outer surface has a first angled section adjacent the first pane contact surface and a second angled section adjacent the second pane contact surface. Each of the first and second angled sections assume an angle of 120 to 150 relative to the respective adjacent first pane contact surface and second pane contact surface.

A spacer for insulating glass units, includes a hollow profile extending in the longitudinal direction and coextruded from a polymeric base material and a diffusion-barrier material, including a first side wall and a second side wall, a glazing interior wall connecting the side walls to one another; an outer wall arranged substantially parallel to the glazing interior wall and connecting the side walls to one another; a cavity enclosed by the side walls, the glazing interior and outer walls. The outer wall includes at least two layers of base material and at least two layers of diffusion-barrier material, a layer of base material is always arranged between two layers of diffusion-barrier material, the layers of base material and diffusion-barrier material extend in the longitudinal direction, and at least one layer of diffusion-barrier material in the outer wall extends from the first side wall to the second side wall.

An insulating glass unit suitable for a refrigeration unit is presented. The insulating glass unit includes a first pane, a second pane spaced at a distance from the first pane, a peripheral spacer frame between the first pane and the second pane, and an inner interpane space. According to one aspect, the spacer frame includes four hollow-profile polymeric spacers, which are secured between the first pane and the second pane along one of the four sides of the insulating glass. According to another aspect, the two first hollow-profile polymeric spacers are arranged along two opposing first sides of the insulating glass unit and the two second hollow-profile polymeric spacers are arranged along two opposing second sides of the insulating glass unit. According to yet another aspect, the first polymeric hollow-profile spacers contain 5% to 50% and the second polymeric hollow-profile spacers contain 0% to 0.5% reinforcement fibers.

A glass panel unit manufacturing method includes a punching step and a pillar mounting step. In the punching step, a punch punches at least one of a plurality of portions from a base material of a sheet to form at least one pillar. Each of the plurality of portions is surrounded by a corresponding one of a plurality of loop-shaped grooves in the base material. In the pillar mounting step, the at least one pillar is mounted on a surface of a first substrate including a glass pane.

A method for producing a triple insulating glazing unit is presented. According to the method, one pane is inserted into a groove of a spacer that is peripherally shaped to form a spacer frame to enframe the pane. A first pane and a second pane are connected to corresponding contact surfaces of the spacer frame by way of an upper edge and lateral edges of the first and second panes. Lower edges of the first and second panes are bent outward. Formed interpane spaces are filled from below with a protective gas, and the arrangement of the panes and the spacer frame is sealed and pressed together.

A gripping device is configured to hold an insulating glazing subassembly including a spacer frame and at least one central glass sheet received in an internal peripheral groove of the spacer frame. The gripping device includes, on the one hand, members for gripping the spacer frame and, on the other hand, members for gripping the central glass sheet so as to ensure an independent gripping of the spacer frame and of the central glass sheet while allowing a relative movement of one with respect to the other.