Inflatable articles comprising a self-repairing laminate

• US 8,685,513 B1
• Filed: 02/28/2013
• Issued: 04/01/2014
• Est. Priority Date: 02/29/2012
• Status: Active Grant

• Current Assignee: Carolyn M. Dry
• Original Assignee: Carolyn M. Dry
• Inventors: Dry, Carolyn M.
• Primary Examiner(s): JACOBSON, MICHELE LYNN
• Application Number:
  US13/781,251
• Time in Patent Office: 397 Days
• Field of Search: 152503-507, 428/912, 428/35.8
• US Class Current: 428/35.8
• CPC Class Codes: B29C 73/163 Sealing compositions or agents, e.g. combined with propellant agents
• CPC Class Codes: B29C 73/22 the article containing elements including a sealing composition, e.g. powder being liberated when the article is damaged
• CPC Class Codes: B32B 1/00 Layered products having a non-planar shape
• CPC Class Codes: B32B 15/085 comprising polyolefins
• CPC Class Codes: B32B 15/09 comprising polyesters
• CPC Class Codes: B32B 2250/03 3 layers
• CPC Class Codes: B32B 2307/762 Self-repairing, self-healing
• CPC Class Codes: B60C 19/12 Puncture preventing arrangements
• CPC Class Codes: B60C 19/122 disposed inside of the inner liner
• CPC Class Codes: B60C 19/125 disposed removably on the tyre
• CPC Class Codes: B60C 19/127 for inner tubes
• CPC Class Codes: B60C 2200/12 for bicycles
• CPC Class Codes: Y10S 428/912 Puncture healing layer
• CPC Class Codes: Y10T 152/10675 Using flowable coating or composition
• CPC Class Codes: Y10T 152/10684 On inner surface of tubeless tire
• CPC Class Codes: Y10T 152/10693 Sealant in plural layers or plural pockets
• CPC Class Codes: Y10T 152/10702 within or part of construction of inflating inner tube
• CPC Class Codes: Y10T 152/10711 Sealant in plural layers or plural pockets
• CPC Class Codes: Y10T 428/1355 Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
• CPC Class Codes: Y10T 428/1359 Three or more layers [continuous layer]

Abstract

A self-repairing inflatable article including an inflatable component that includes an interior surface and an exterior surface, a sealed flexible package adjacent to the inflatable component, and a sealant composition disposed in the sealed flexible package. The sealed flexible package is configured to release the sealant composition upon puncture, tearing or other breach of the inflatable component.

Claims

1. A self-repairing inflatable article comprising:

an inflatable component comprising an interior surface and an exterior surface;

a sealed flexible package adjacent to at least one of the interior surface or the exterior surface of the inflatable component, and

a sealant composition disposed in the sealed flexible package,

wherein

the sealed flexible package comprises;

a first sheet with one or more edges;

a second sheet with one or more edges;

the sealant composition disposed between the first and second sheets;

the first and second sheets sealed to each other at the one or more edges, where each sheet is a laminate comprising a metal foil layer between two or three polymer layers that are the same or different; and

the sealed flexible package is configured to release the sealant composition upon puncture of the inflatable component.

2. The article of claim 1 wherein the self-repairing inflatable article comprises an elastomeric component.

3. The article of claim 2 wherein the inflatable component is elastomeric.

4. The article of claim 1 wherein the inflatable component is an inner tube, a balloon, a bladder, or a plenum.

5. The article of claim 1 comprising a plurality of sealed flexible packages.

6. The article of claim 1 wherein the sealed flexible package is adjacent to the interior surface of the inflatable component.

7. The article of claim 1 wherein the sealed flexible package is adjacent to the exterior surface of the inflatable component.

8. The article of claim 1 wherein the sealed flexible package comprises two or more sealed cells in which the sealant composition is disposed.

9. The article of claim 1 wherein the metal is aluminum, tin, steel or an alloy of anyone of the foregoing.

10. The article of claim 1 wherein an interior surface of the sealed flexible package is an acid-treated surface.

11. The article of claim 10, wherein the acid-treated surface has been treated with at least one of muriatic acid, maleic acid, or acetic acid.

12. The article of claim 1, wherein the polymer is selected from the group consisting of nylon, polyolefin, polyester, polycarbonate, polyacrylate, polyarylate, polyamide, polyimide, polyaramide, polyurethane, cellulose, and nitrocellulose.

13. The article of claim 1, wherein the polymer is selected from the group consisting of polyester, polyethylene and polypropylene.

14. The article of claim 1 wherein the sealant composition comprises one or more of cyanoacrylate, one-part epoxy, polymerizable monomers, polymerizable oligomers, polyurethane, rubber cement, and vulcanizing fluid with natural rubber whiskers.

15. The article of claim 14, wherein the sealant composition comprises one or more of an acrylate, alkyl acrylate, methylmethacrylate, cyanoacrylate, acrylic acid, alkyl acrylic acid, olefin, lactone, lactam, styrene, isoprene, butadiene, urethane, dicyclopentadiene and epoxy.

16. The article of claim 1 wherein the sealant composition comprises one or more of ethyl 2-cyanoacrylate, methyl 2-cyanoacrylate, n-butyl cyanoacrylate, 2-octyl cyanoacrylate, alkyl (meth)acrylate, rubber cement, and vulcanizing fluid.

17. The article of claim 1 wherein the sealant composition comprises a chemical capable of chemically bonding to an elastomeric polymer.

18. The article of claim 1, wherein the article is a tire comprising:

a tire casing having an interior surface and an exterior surface,

an inner tube having an interior surface and an exterior surface,

wherein the flexible package is disposed between the interior surface of the tire casing and the exterior surface of the inner tube.

19. The article of claim 18, wherein the article is a bicycle tire.

20. A wheel comprising the tire of claim 18.

21. The article of claim 1, wherein the inflatable component has the shape of a tube, beam or arch.

22. The article of claim 21, wherein the article comprises a ballistic grade woven web protecting the inflatable component.

23. The article of claim 22, wherein the ballistic grade woven web comprises at least one of fiberglass, nylon fibers, polypropylene fibers, metal fibers, inerga fibers, tegris fibers, para-amide fibers meta-amide fibers, or polyparaphenylene terephthalamide fibers.

24. The article of claim 22, wherein the ballistic grade woven web surrounds the inflatable component.

25. A structure comprising an article of claim 1, wherein the article supports the structure in part or in full.

26. The structure of claim 22 wherein the structure is a tent or building.

30. The article of claim 13, wherein each sheet is a laminate having a top layer of polyester, an adhering later of polyethylene, a metal foil such as aluminum foil and a second layer of polyethylene which forms the internal surface of the package.

31. The article of claim 1, wherein the sealed flexible package ranges from about 0.5 cm×

1 cm to about 10 cm×

30 cm in size.

32. The article of claim 1, wherein the sealant composition further comprises pieces of rubber, other elastomers, or asphalt.

33. The article of claim 32, wherein the amount of rubber, other elastomers, or asphalt range from about 0% to about 75% by weight of the sealant composition.

34. The article of claim 1, wherein each laminate sheet has a thickness of about 0.5 to 100 mils.

35. The article of claim 1, wherein each laminate sheet has a thickness of about 5 to 20 mils.

27. A tire comprising:

a tire casing having an interior surface and an exterior surface,

an inner tube having an interior surface and an exterior surface, and

a flexible package disposed between the interior surface of the tire casing and the exterior surface of the inner tube,

wherein

a sealant composition is disposed in the sealed flexible package,

the sealed flexible package comprises;

a first sheet with one or more edges;

a second sheet with one or more edges;

the sealant composition disposed between the first and second sheets;

the first and second sheets sealed to each other at the one or more edges, where each sheet is a laminate comprising a metal foil layer between two or three polymer layers that are the same or different; and

the flexible package being configured to release the sealant composition upon puncture of the flexible package.

28. The article of claim 27, wherein the tire is a bicycle tire.

29. A wheel comprising the tire of claim 27.

36. The tire of claim 27, wherein the sealed flexible package ranges from about 0.5 cm×

1 cm to about 10 cm×

30 cm in size.

37. The tire of claim 27, wherein the sealant composition further comprises pieces of rubber, other elastomers, or asphalt.

38. The article of claim 27, wherein each laminate sheet has a thickness of about 0.5 to 100 mils.

39. The article of claim 27, wherein each laminate sheet has a thickness of about 5 to 20 mils.