Polymer sheets comprising a fluoropolymer
The present invention is in the field of interlayers for use in multiple layer glass panels, and more specifically, the present invention is in the field of interlayers comprising a fluoropolymer sheet and a nonfluoropolymer polymer sheet.
1. A multiple layer glass panel, comprising:
a first pane of glass;
a second pane of glass; and,
a multiple layer glass panel interlayer, wherein said interlayer comprises:
a fluoropolymer sheet having a thickness of 0.1 to 1.5 millimeters; and,
a nonfluoropolymer polymer sheet comprising poly(vinyl butyral), wherein said interlayer is disposed between said first pane of glass and said second pane of glass.
2. The panel of claim 1 , wherein said fluoropolymer sheet and said nonfluoropolymer polymer sheet are bonded together with an adhesive agent.
3. The panel of claim 2 , wherein said adhesive agent comprises a silane or siloxane.
4. The panel of claim 1 , wherein said fluoropolymer sheet comprises tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride.
5. The panel of claim 4 , wherein said fluoropolymer sheet comprises at least 75 weight percent of said tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride.
6. The panel of claim 1 , wherein said fluoropolymer sheet comprises an ethylene-tetrafluoroethylene copolymer.
7. The panel of claim 1 , wherein said fluoropolymer sheet and said nonfluoropolymer polymer sheet are disposed in contact with each other.
8. The panel of claim 1 , further comprising a polymer film disposed between said fluoropolymer sheet and said nonfluoropolymer polymer sheet.
9. The panel of claim 8 , wherein said polymer film comprises poly(ethylene terephthalate).
10. The panel of claim 1 , wherein said nonfluoropolymer polymer sheet comprises a phosphate ester plasticizer.