Glass laminates comprising acoustic interlayers and solar control films

• US 20090087669A1
• Filed: 09/28/2007
• Published: 04/02/2009
• Est. Priority Date: 09/28/2007
• Status: Abandoned Application

• Current Assignee: Donald L. Rymer, Jerrel C. Anderson, Richard A. Hayes
• Original Assignee: Donald L. Rymer, Jerrel C. Anderson, Richard A. Hayes
• Inventors: Anderson, Jerrel C., Rymer, Donald L., Hayes, Richard A.
• Application Number:
  US11/904,872
• Publication Number:
  US 20090087669A1
• Time in Patent Office: Days
• US Class Current: 428/430
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2605/10 Trains
• CPC Class Codes: Y10T 428/31616 Next to polyester [e.g., alkyd]

Abstract

Provided is a glass/plastic safety laminate comprising a monolayer acoustic poly(vinyl acetal) interlayer sheet and optionally other suitable interlayer sheet(s) bonded between a glass sheet and a hardcoated solar control polymeric film.

Claims

1. An acoustic solar control laminate consisting essentially of an acoustic polymeric interlayer sheet bonded between a rigid sheet and a polymeric film, wherein:

(a) the rigid sheet is formed of a material having a modulus of at least about 100,000 psi (690 MPa);

(b) the acoustic polymeric interlayer sheet consists of a monolayer sheet comprising an acoustic poly(vinyl acetal) composition having a glass transition temperature of 23°

C. or less;

(c) the polymeric film has an inbound surface that is adjacent to the polymeric interlayer and an outbound surface that is distal to the polymeric interlayer sheet; and

(d) at least one of the two surfaces of the polymeric film is at least partially coated with an infrared energy reflective layer comprising a metal layer or a Fabry-Perot type interference filter layer.

4. The acoustic solar control laminate of claim 1, wherein the outbound surface of the polymeric film is further at least partially coated with an abrasion-resistant hardcoat.

5. The acoustic solar control laminate of claim 1, wherein the acoustic poly(vinyl acetal) composition comprises a poly(vinyl acetal) produced by acetalizing a poly(vinyl alcohol) with one or more aldehydes containing 6 to 10 carbon atoms.

6. The acoustic solar control laminate of claim 5, wherein the poly(vinyl acetal) has an acetalization degree of at least about 50 mole %.

7. The acoustic solar control laminate of claim 5, wherein the acoustic poly(vinyl acetal) composition further comprises a plasticizer.

8. The acoustic solar control laminate of claim 1, wherein the acoustic poly(vinyl acetal) composition comprises a poly(vinyl acetal) having about 8 to about 30 mole % of acetoxy groups, based on the total number of moles of vinyl groups in the poly(vinyl acetal).

9. The acoustic solar control laminate of claim 8, wherein the poly(vinyl acetal) is produced by acetalizing a poly(vinyl alcohol) with an aldehyde containing 4 to 6 carbon atoms.

10. The acoustic solar control laminate of claim 9, wherein the aldehyde is n-butyl aldehyde and the poly(vinyl acetal) is a poly(vinyl butyral).

12. The acoustic solar control laminate of claim 1, wherein the acoustic poly(vinyl acetal) composition comprises a poly(vinyl acetal) and about 40 to about 60 parts per hundred (pph) of a plasticizer, based on 100 parts by weight of the poly(vinyl acetal).

13. The acoustic solar control laminate of claim 12, wherein the poly(vinyl acetal) is a poly(vinyl butyral).

14. The acoustic solar control laminate of claim 1, wherein the acoustic poly(vinyl acetal) sheet has a thickness of at least about 10 mils (0.25 mm).

15. The acoustic solar control laminate of claim 12, wherein the acoustic poly(vinyl acetal) sheet has a thickness of about 15 to 70 mils (0.38 to 1.74 mm).

16. The acoustic solar control laminate of claim 1, wherein the rigid sheet is a glass sheet.

17. The acoustic solar control laminate of claim 1, wherein the polymeric film comprises a polyester.

18. The acoustic solar control laminate of claim 17, wherein the polymeric film comprises a poly(ethylene terephthalate).

19. The acoustic solar control laminate of claim 4, wherein the abrasion-resistant hardcoat is formed of a material selected from the group consisting of polysiloxanes, cross-linked polyurethanes, and composition prepared by the reaction of (A) hydroxyl-containing oligomer with isocyanate-containing oligomer or (B) anhydride-containing oligomer with epoxide-containing compound.

20. The acoustic solar control laminate of claim 4, wherein the polymeric film has the infrared energy reflective layer coated on both surfaces and the abrasion-resistant hardcoat coated to the outbound surface over the infrared energy reflective layer.

21. The acoustic solar control laminate of claim 4, wherein the polymeric film has the infrared energy reflective layer coated on the inbound surface and the abrasion-resistant hardcoat coated on the outbound surface.

23. The acoustic solar control laminate of claim 1, wherein (a) the rigid sheet is a glass sheet and (b) the polymeric film comprises a poly(ethylene terephthalate) and has an inbound surface, which is adjacent to the polymeric interlayer sheet, coated with an infrared energy reflective layer comprising a metal layer or a Fabry-Perot type interference filter layer and an outbound surface, which is further away from the polymeric interlayer sheet, coated with an abrasion-resistant hardcoat.

2. (canceled)

3. (canceled)

11. The acoustic solar control laminate of 8, wherein the acoustic poly(vinyl acetal) composition further comprises a plasticizer.

22. (canceled)