Laminated vehicle pane with opaque polymeric film

Patent metadata

Field	Value
Publication number	US-2021237403-A1
Application number	US-201917049860-A
Country	US
Kind code	A1
Filing date	Jul 8, 2019
Priority date	Jul 23, 2018
Publication date	Aug 5, 2021
Grant date	—

Abstract

A laminated vehicle includes an outer pane and an inner pane that are joined to one another via at least one thermoplastic intermediate layer and an opaque polymeric film that is arranged between the outer pane and the inner pane, wherein the opaque polymeric film has at least one cutout.

First claim

1 . A laminated vehicle pane comprising:
an outer pane and an inner pane that are joined to one another via at least one thermoplastic intermediate layer, and an opaque polymeric film that is arranged between the outer pane and the inner pane, wherein the opaque polymeric film has at least one cutout.

2 . The laminated vehicle pane according to claim 1 , wherein the at least one cutout is a sensor window for an optical sensor.

3 . The laminated vehicle pane according to claim 1 , wherein the opaque polymeric film is made of polyethylene terephthalate (PET) or polyethylene (PE).

4 . The laminated vehicle pane according to claim 1 , wherein the at least one thermoplastic intermediate layer contains at least polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyurethane (PU), or mixtures or copolymers or derivatives thereof.

5 . The laminated vehicle pane according to claim 1 , wherein the outer pane and the inner pane are joined to one another via exactly one thermoplastic intermediate layer and the opaque polymeric film is arranged between the inner pane and the thermoplastic intermediate layer or between the outer pane and the thermoplastic intermediate layer.

6 . The laminated vehicle pane according to claim 1 , wherein the outer pane and the inner pane are joined to one another via at least two thermoplastic intermediate layers and the opaque polymeric film is arranged between two of the thermoplastic intermediate layers.

7 . The laminated vehicle pane according to claim 1 , wherein the opaque polymeric film is between 10 μm and 80 μm thick.

8 . The laminated vehicle pane according to claim 1 , wherein the opaque polymeric film is black.

9 . The laminated vehicle pane according to claim 1 , additionally comprising a masking print, wherein the opaque polymeric film and the masking print have substantially the same optical density and the masking print is a peripheral masking print.

10 . The laminated vehicle pane according to claim 1 , wherein the at least one cutout has an area of at least 1 cm 2 .

11 . The laminated vehicle pane according to claim 1 , wherein the laminated vehicle pane is a curved laminated vehicle pane.

12 . The laminated vehicle pane according to claim 11 , wherein the laminated vehicle pane is a windshield that is mirror-symmetrical along a center line, and the opaque polymeric film is arranged on the center line in the vicinity of the upper edge of the windshield.

13 . The laminated vehicle pane according to claim 1 , additionally comprising at least one optical sensor that is secured on the interior-side surface of the inner pane and is directed toward the at least one cutout.

14 . A method for producing a laminated vehicle pane according to claim 1 , comprising:
providing an outer pane, an inner pane, at least one thermoplastic intermediate layer, and an opaque polymeric film, which has at least one cutout; arranging the at least one thermoplastic intermediate layer and the opaque polymeric film between the outer pane and the inner pane; and joining the outer pane to the inner pane via the at least one thermoplastic intermediate layer by lamination.

15 . A method comprising utilizing a laminated vehicle pane according to claim 1 as a windshield of a vehicle.

16 . The laminated vehicle pane according to claim 3 , wherein the opaque polymeric film is made of polyethylene terephthalate (PET).

17 . The laminated vehicle pane according to claim 4 , wherein the at least one thermoplastic intermediate layer contains polyvinyl butyral (PVB) or polyvinyl butyral (PVB) and plasticizers.

18 . The laminated vehicle pane according to claim 7 , wherein the opaque polymeric film is between 25 μm and 50 μm.

19 . The laminated vehicle pane according to claim 10 , wherein the area is of 10 cm 2 to 250 cm 2 .

20 . The laminated vehicle pane according to claim 11 , wherein the curved laminated vehicle pane is a windshield.

Assignees

• Saint Gobain

Inventors

• Klein Marcel
• Kolf Michael
• Schulz Valentin

Classifications

• B32B2605/006

  Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings · CPC title

• B32B2307/41

  Opaque · CPC title

• B32B2307/402

  Coloured · CPC title

• B32B17/10807

  Making laminated safety glass or glazing; Apparatus therefor · CPC title

• B32B17/10779

  containing polyester · CPC title