Systems and methods for interior energy-activation from an exterior source

Patent metadata

Field	Value
Publication number	US-9278331-B2
Application number	US-201514635677-A
Country	US
Kind code	B2
Filing date	Mar 2, 2015
Priority date	Apr 8, 2007
Publication date	Mar 8, 2016
Grant date	Mar 8, 2016

Abstract

A method and a system for producing a change in a medium. The method places in a vicinity of the medium at least one energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.

First claim

The invention claimed is:

1. A method for curing an adhesive, comprising:
disposing in contact with an object an adhesive composition comprising 1) an uncured radiation-curable medium, 2) an energy modulation agent, and 3) a photo-activated photoinitiator, wherein the energy modulation agent is resistant to chemical interaction with the uncured radiation-curable medium;
applying energy from at least one of x-rays, gamma rays, or an electron beam into the composition, wherein the energy interacts with the energy modulation agent and internally generates light inside the uncured radiation-curable medium; and
activating the photoinitiator in the radiation-curable medium with the internally generated light and thereby curing the radiation-curable medium.

2. The method of claim 1 , wherein the adhesive composition in said disposing step comprises a chemically inert energy modulation agent.

3. The method of claim 2 , wherein the disposing comprises disposing a polymer coated energy modulation agent as the chemically inert energy modulation agent.

4. The method of claim 2 , wherein the disposing comprises disposing a silica coated energy modulation agent as the chemically inert energy modulation agent.

5. The method of claim 2 , wherein the disposing comprises disposing a zeolite-encased energy modulation agent as the chemically inert energy modulation agent.

6. The method of claim 2 , wherein the disposing comprises disposing at least one of a telluride, a selenide, and an oxide semiconductor as the chemically inert energy modulation agent.

7. The method of claim 2 , wherein the disposing comprises disposing at least one of Y 2 O 3 ; ZnSe; Mn, Er ZnSe; Mn; Mn, Yb ZnSe; Mn, Y 2 O 3 :Tb 3+; Y 2 O 3 :Tb 3+ , Er3 + ; CdSe, Y 2 O 3 :Eu 3+ , Y 2 O 3 :Eu 3+ ; BaFBr:Tb 3+ ; and YF 3 :Tb 3+ as the chemically inert energy modulation agent.

8. The method of claim 1 , wherein the disposing comprises disposing an adhesive composition having a concentration of 10 9 nanoparticles/cm 3 of 200 nm diameter energy modulation agents.

9. The method of claim 2 , wherein the disposing comprises disposing an adhesive composition having a concentration greater than 10 9 nanoparticles/cm 3 of 200 diameter energy modulation agents.

10. The method of claim 1 , wherein the activating comprises: activating the photoiniator with 200-280 nm wavelength ultraviolet light.

11. The method of claim 1 , wherein the activating comprises: activating the photoiniator with 280-320 nm wavelength ultraviolet light.

12. The method of claim 1 , wherein the activating comprises: activating the photoiniator with 320-400 nm wavelength ultraviolet light.

13. The method of claim 1 , wherein the activating comprises: activating the photoiniator with 350-400 nm wavelength ultraviolet light.

14. The method of claim 1 , wherein the uncured radiation-curable medium comprises a UV-curable silicone.

15. The method of claim 14 , wherein the UV-curable silicone comprises an organopolysiloxane.

16. The method of claim 14 , wherein the UV-curable silicone includes a methacrylate group.

17. The method of claim 14 , wherein the UV-curable silicone includes an acryloxy group.

18. The method of claim 14 , wherein the UV-curable silicone includes at least one of carboxylate, maleate, and cinnamate.

19. The method of claim 14 , wherein the UV-curable silicone includes a free radical generator.

20. The method of claim 19 , wherein the free radical generator comprises a benzoin ether.

21. The method of claim 14 , wherein the UV-curable silicone includes at least one of trimethylsilyl, dimethylsilyl, phenyldimethylsilyl, vinyldimethylsilyl, trifluoropropyldimethylsilyl, (4-vinylphenyl)dimethylsilyl, (vinylbenzyl)dimethylsilyl, and (vinylphenethyl)dimethylsilyl.

22. The method of claim 1 , wherein the photoinitiator comprises at least one of at least one of benzoin, substituted benzoins, alkyl ester substituted benzoins, Michler's ketone, dialkoxyacetophenones, diethoxyacetophenone, benzophenone, substituted benzophenones, acetophenone, substituted acetophenones, xanthone, substituted xanthones, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, diethoxyxanthone, chloro-thio-xanthone, azo-bisisobutyronitrile, N-methyl diethanolaminebenzophenone, camphoquinone, peroxyester initiators, non-fluorene-carboxylic acid peroxyesters and mixtures thereof.

23. The method of claim 1 , wherein the photoinitiator comprises a weight percentage of the uncured radiation-curable medium ranging from 0.1% to 10%.

24. The method of claim 1 , wherein the photoinitiator comprises a weight percentage of the uncured radiation-curable medium ranging from 2 to 6%.

25. The method of claim 1 , wherein the uncured radiation-curable medium includes a moisture cure catalyst.

26. The method of claim 22 , wherein the moisture cure catalyst comprises an organic compound of at least one of titanium, tin, zirconium, and combinations thereof.

27. The method of claim 1 , wherein the uncured radiation-curable medium includes an inorganic filler material.

28. The method of claim 24 , wherein the inorganic filler material comprises a silica.

29. The method of claim 24 , wherein the inorganic filler material comprises a color pigment.

30. The method of claim 1 , wherein the uncured radiation-curable medium includes a UV curable urethane acrylate.

31. The method of claim 1 , wherein the applying energy comprises: applying said energy from an external energy source of the x-rays, gamma rays, or electron beam.

32. The method of claim 1 , wherein the applying energy comprises: applying 10 to 150 keV x-rays to the uncured radiation-curable medium.

33. The method of claim 1 , wherein the applying energy comprises: applying said energy from a directed or focused energy source.

34. The method of claim 1 , wherein the energy modulation agent comprises luminescent particles distributed throughout the uncured medium whose emission cures the uncured medium throughout the medium.

35. The method of claim 1 , further comprising: filling a gap inside the object and curing the radiation-curable medium in the gap.

36. The method of claim 35 , wherein the gap is inside the object.

37. The method of claim 36 , wherein the object comprises at least one of a bottle cap, a prosthetic device, a concrete structure, and a storage tank.

38. The method of claim 1 , wherein the disposing comprises pressure injecting said composition into said object to fill a gap inside the object.

39. The method of claim 1 , wherein the curing the radiation-curable medium comprises closing a hole or a pathway in the object.

40. The method of claim 1 , wherein the activating comprises adhering said first object to a second object.

41. The method of claim 40 , wherein the first object comprises a medical bottle cap and the second object comprises a seal material for the medical bottle cap.

Assignees

• Immunolight Llc
• Immunolight Llc

Inventors

• Bourke Jr Frederic A

Classifications

• A61P35/00

  Antineoplastic agents · CPC title

• A61P31/04

  Antibacterial agents · CPC title

• A61P31/18

  for HIV · CPC title

• A61P7/08

  Plasma substitutes; Perfusion solutions; Dialytics or haemodialytics; Drugs for electrolytic or acid-base disorders, e.g. hypovolemic shock (artificial tears A61P27/04) · CPC title

• A61L2/088

  using photocatalysts or photosensitisers · CPC title