Systems and methods for adherable and removable thin flexible glass

• US 8,486,535 B1
• Filed: 05/24/2010
• Issued: 07/16/2013
• Est. Priority Date: 05/24/2010
• Status: Active Grant

• Current Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Nemeth, Paul R., Sampica, James D., Prior, Gary N., Dotson, Kyle P.
• Primary Examiner(s): SAMPLE, DAVID R
• Application Number:
  US12/786,169
• Time in Patent Office: 1,149 Days
• Field of Search: None
• US Class Current: 428/426
• CPC Class Codes: B32B 17/06 comprising glass as the main or only constituent of a layer, next to another layer of a specific material
• CPC Class Codes: B32B 17/1033 Laminated safety glass or glazing containing temporary protective coatings or layers
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B60J 1/2094 Protective means for window, e.g. additional panel or foil, against vandalism, dirt, wear, shattered glass, etc.
• CPC Class Codes: C03C 17/28 with organic material C03C17/34, C03C17/44 take precedence
• CPC Class Codes: C09J 7/22 Plastics; Metallised plastics
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/26 Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
• CPC Class Codes: Y10T 428/268 Monolayer with structurally defined element

Abstract

A flexible assembly is configured to be removably applied to a curved or planar surface of an underlying component. The assembly includes a flexible glass layer and an adhesive layer provided on at least one surface of the flexible glass layer. The flexible glass layer and the adhesive layer in combination enable the flexible assembly to be removably secured to the curved or planar surface.

Claims

1. A vehicle windshield assembly comprising:

a flexible glass layer;

an adhesive layer provided on at least one surface of the flexible glass layer; and

a windshield substrate having a curved surface;

wherein the adhesive layer removably secures the flexible glass layer to the curved surface.

2. The assembly of claim 1, wherein the flexible glass layer and the windshield substrate are substantially transparent.

3. The assembly of claim 1, further comprising an additional thin film layer provided on an opposite surface of the flexible glass layer from the adhesive layer, the additional thin film layer configured to enhance optical properties of the flexible protective assembly.

4. The assembly of claim 1, wherein the glass layer comprises aluminosilicate.

5. The assembly of claim 1, wherein the glass layer has a thickness in the range of approximately 50-500 microns.

6. The assembly of claim 1, wherein the adhesive layer comprises a pressure sensitive adhesive.

7. The assembly of claim 1, wherein the glass layer comprises at least one of an aluminosilicate, a borosilicate, and a soda-lime material.

8. The assembly of claim 1, wherein the glass layer and adhesive layer are provided as rolled materials and laminated together.

9. The assembly of claim 1, wherein the adhesive layer comprises a spray coating of adhesive.

10. The assembly of claim 1, wherein the adhesive layer has a thickness in the range of approximately 125-250 nanometers.

11. The assembly of claim 1, wherein the adhesive layer includes a removable protective layer, the protective layer configured to be removed prior to applying the flexible assembly to the curved surface.

12. A vehicle windshield assembly comprising:

a flexible glass layer having a thickness in the range of 50-500 microns;

an adhesive layer applied to at least one surface of the flexible glass layer;

a backing layer applied to the adhesive layer such that the adhesive layer is provided between the flexible glass layer and the backing layer; and

a windshield substrate having a curved surface;

wherein the flexible glass layer is removably adhered to the curved surface by the adhesive layer upon removal of the backing layer from the adhesive layer.

13. The assembly of claim 12, further comprising an additional thin film layer provided on an opposite surface of the flexible glass layer from the adhesive layer, the additional thin film layer configured to enhance optical properties of the flexible protective assembly.

14. The assembly of claim 12, wherein the adhesive layer comprises at least one of a pressure sensitive adhesive and a water-activated adhesive.

15. The assembly of claim 12, wherein the flexible glass layer and the adhesive layer are formed from rolled goods.

16. The assembly of claim 12, wherein the glass layer comprises aluminosilicate.

17. The assembly of claim 12, wherein the adhesive layer comprises a water-activated adhesive.