Polymer sheets comprising a fluoropolymer

• US 20060093830A1
• Filed: 11/02/2004
• Published: 05/04/2006
• Est. Priority Date: 11/02/2004
• Status: Active Grant

• Current Assignee: Solutia Incorporated (Eastman Chemical Company)
• Original Assignee: Solutia Incorporated (Eastman Chemical Company)
• Inventors: Karagiannis, Aristotelis, Schimmelpenningh, Julia Claire, Ma, Yinong
• Granted Patent: US 7,399,525 B2
• Time in Patent Office: Days
• US Class Current: 428/421
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10311 Intumescent layers for fire protection
• CPC Class Codes: B32B 17/10697 being cross-linked
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 2307/3065 Flame resistant or retardant, fire resistant or retardant
• CPC Class Codes: B32B 2327/12 containing fluorine
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2605/006 Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/22 using plasticisers
• CPC Class Codes: B32B 27/30 comprising vinyl (co)polymers; comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/42 comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
• CPC Class Codes: C08K 5/521 Esters of phosphoric acids, e.g. of H3PO4
• CPC Class Codes: C08L 29/14 Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
• CPC Class Codes: Y10T 428/269 including synthetic resin or polymer layer or component
• CPC Class Codes: Y10T 428/3154 Of fluorinated addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/3163 Next to acetal of polymerized unsaturated alcohol [e.g., formal butyral, etc.]
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31942 : Of aldehyde or ketone condensation product

Abstract

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.

Claims

1. A multiple layer glass panel interlayer, comprising:

a fluoropolymer sheet; and

,

a nonfluoropolymer polymer sheet.

2. The interlayer of claim 1, wherein said nonfluoropolymer polymer sheet comprises plasticized poly(vinyl butyral).

3. The interlayer of claim 2, wherein said fluoropolymer sheet and said nonfluoropolymer polymer sheet are bonded together with an adhesive agent.

4. The interlayer of claim 3, wherein said adhesive agent comprises a silane or siloxane.

5. The interlayer of claim 2, wherein said fluoropolymer sheet comprises tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride.

6. The interlayer of claim 5, wherein said fluoropolymer sheet comprises at least 75 weight percent of said tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride.

7. The interlayer of claim 2, wherein said fluoropolymer sheet comprises an ethylene-tetrafluoroethylene copolymer.

8. The interlayer of claim 2, wherein said fluoropolymer sheet and said nonfluoropolymer polymer sheet are disposed in contact with each other.

9. The interlayer of claim 2, further comprising a polymer film disposed between said fluoropolymer sheet and said nonfluoropolymer polymer sheet.

10. The interlayer of claim 9, wherein said polymer film comprises poly(ethylene terephthalate).

11. The interlayer of claim 2, wherein said nonfluoropolymer polymer sheet comprises a phosphate ester plasticizer.

12. A method of manufacturing a multiple layer glass panel interlayer, comprising:

forming a multiple layer stack, wherein said multiple layer stack comprises a fluoropolymer sheet and a nonfluoropolymer sheet; and

,

laminating said stack to form said interlayer.

13. The method of claim 12, wherein said nonfluoropolymer polymer sheet comprises plasticized poly(vinyl butyral).

14. The method of claim 13, further comprising disposing an adhesive agent between said fluoropolymer sheet and said nonfluoropolymer polymer sheet prior to said laminating.

15. The method of claim 14, wherein said adhesive agent comprises a silane or siloxane.

16. The method of claim 13, wherein said fluoropolymer sheet comprises tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride.

17. The method of claim 16, wherein said fluoropolymer sheet comprises at least 75 weight percent of said tetrafluoroethylene/hexafluoropropylene/vinylidene fluoride.

18. The method of claim 13, wherein said fluoropolymer sheet comprises an ethylene-tetrafluoroethylene copolymer.

19. The method of claim 13, wherein said fluoropolymer sheet and said nonfluoropolymer polymer sheet are disposed in contact with each other.

20. The method of claim 13, wherein said stack further comprises a polymer film disposed between said fluoropolymer sheet and said nonfluoropolymer polymer sheet.

21. The method of claim 20, wherein said polymer film comprises poly(ethylene terephthalate).

22. The method of claim 13, wherein said nonfluoropolymer polymer sheet comprises a phosphate ester plasticizer.

23. A multiple layer glass panel, comprising a multiple layer glass panel interlayer, wherein said interlayer comprises:

a fluoropolymer sheet; and

,

a nonfluoropolymer polymer sheet.