NONMETALLIC ULTRA-LOW PERMEABILITY BUTYL TAPE FOR USE AS THE FINAL SEAL IN INSULATED GLASS UNITS

• US 20100139193A1
• Filed: 12/08/2009
• Published: 06/10/2010
• Est. Priority Date: 12/09/2008
• Status: Abandoned Application

• Current Assignee: Serious Energy, Inc.
• Original Assignee: Serious Energy, Inc.
• Inventors: Goldberg, Michael J., Tinianov, Brandon D.
• Application Number:
  US12/633,649
• Publication Number:
  US 20100139193A1
• Time in Patent Office: Days
• US Class Current: 52/309.300
• CPC Class Codes: B32B 2270/00 Resin or rubber layer containing a blend of at least two different polymers
• CPC Class Codes: B32B 2307/304 Insulating
• CPC Class Codes: B32B 2307/7242 Non-permeable
• CPC Class Codes: B32B 2307/7246 Water vapor barrier
• CPC Class Codes: B32B 25/08 of synthetic resin
• CPC Class Codes: B32B 25/18 comprising butyl or halobutyl rubber
• CPC Class Codes: B32B 2581/00 Seals; Sealing equipment; Gaskets
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/283 comprising polysiloxanes
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/40 comprising polyurethanes
• CPC Class Codes: B32B 3/02 characterised by features of form at particular places, e.g. in edge regions non-uniform thickness B32B3/263
• CPC Class Codes: B32B 3/08 characterised by added members at particular parts layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: C09J 123/22 Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
• CPC Class Codes: C09J 2421/00 Presence of unspecified rubber
• CPC Class Codes: C09J 5/00 Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
• CPC Class Codes: C09J 7/245 Vinyl resins, e.g. polyvinyl chloride [PVC]
• CPC Class Codes: E06B 3/6621 with special provisions for fitting in window frames or to adjacent units; Separate edge protecting strips E06B3/66347 takes precedence
• CPC Class Codes: E06B 3/66342 characterised by their sealed connection to the panes
• CPC Class Codes: Y10T 428/2878 : including addition polymer from unsaturated monomer

Abstract

The object of the invention is a high performance tape for use in insulated glass units (IGUs) that combines exceptionally low permeability to gases and vapors with extremely low thermal conductivity. Prior art includes low-permeability aluminum-backed tapes as well as low-conductivity polymer-backed tapes, but nothing currently available serves both of these needs with a single product.

Claims

1. A structure for providing a seal between two substantially parallel panes of glass, said structure comprising:

a spacer with two sides adjacent to the inner surfaces of said two panes of glass and a third side facing away from the inner space between said two panes of glass;

a layer of adhesive on each of said two sides of said spacer;

an additional layer of adhesive having a first thickness to attach to and cover said third side; and

a layer of tape placed in contact with the two panes of glass and the additional layer of polyurethane;

said layer of tape comprising one or more layers of PVDC.

2. The structure as in claim 1 wherein the adhesive forming the layer of adhesive on each of said two sides of said spacer and the adhesive forming the additional layer of adhesive is formed from a material selected from the group consisting of polyurethane adhesive and silicon adhesive.

3. The structure as in claim 1 wherein said spacer is placed between two panes of glass, each pane of glass having at least three sides forming an edge, with the third side of the spacer being inward from the at least three sides forming an edge of said two panes of glass by approximately said first thickness of the additional layer of adhesive.

4. The structure as in claim 3 wherein the additional layer of adhesive is formed from a material selected from the group consisting of polyurethane adhesive and silicon adhesive.

5. The structure as in claim 3 wherein said additional layer of adhesive is placed on said third side of said spacer in the space between the inner surfaces of the sides forming an edge of said two panes of glass.

6. The structure as in claim 5 wherein said additional layer of adhesive is formed from a material selected from the group consisting of polyurethane adhesive and silicon adhesive.

7. The structure as in claim 1 wherein the layer of tape placed in contact with the two panes of glass and the additional layer of polyurethane further comprises a layer of PIB-based butyl rubber adhesive.

8. The structure as in claim 7 wherein said layer of tape extends up portions of the outer surfaces of said two panes of glass.

9. The structure as in claim 7 further wherein said layer of tape has a thickness between 0.01 and 0.150 inches.

10. A tape for use in a structure for providing a seal between at least two substantially parallel panes of glass, comprising:

at least one layer of PVDC; and

at least one layer of PIB-based butyl rubber adhesive.

11. A method for fabricating a tape for use in a structure for providing a seal between at least two substantially parallel panes of glass, comprising:

having a first layer of PVDC material; and

placing at least one layer of PIB-based butyl rubber adhesive adjacent to the first layer of PVDC material.

12. The method of claim 11 wherein the first layer of PVDC material is fabricated by the steps of:

a. combining vinilydene chloride, vinyl chloride, and alkyl acrylates in a closed system; and

b. adding an initiator to the combination, so as to start the polymerization process.