IP Library Granted Patent US 8,128,393
Granted Patent B2
US 8,128,393 · App. 11/633,763 · Granted Mar 6, 2012

Methods and materials for fabricating laminate nanomolds and nanoparticles therefrom

Assignee: Liquidia Technologies, Inc.
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Quick Facts
Patent No.
US 8,128,393
App. No.
11/633,763
Granted
Mar 6, 2012
Kind
B2
Abstract

A laminate nanomold includes a layer of perfluoropolyether defining a cavity that has a predetermined shape and a support layer coupled with the layer of perfluoropolyether. The laminate can also include a tie-layer coupling the layer of perfluoropolyether with the support layer. The tie-layer can also include a photocurable component and a thermal curable component. The cavity can have a broadest dimension of less than 500 nanometers.

Claims (50)

1. A laminate nanomold system comprising:

a layer of perfluoropolyether, wherein the layer of perfluoropolyether includes a first surface defining a plurality of cavities, wherein each cavity of the plurality of cavities has a predetermined shape and is less than about 10 micrometers in a largest dimension, and wherein the layer of perfluoropolyether is less than about 75 micrometers in thickness;

a support layer bonded to a second surface of the layer of perfluoropolyether opposite the first surface, wherein the support layer bonded to the layer of perfluoropolyether has a combined modulus greater than about 1400 MPa;

a sheet positioned to face the first surface of the layer of perfluoropolyether;

a material disposed between the sheet and the first surface of the layer of perfluoropolyether, the material configured to conform to the cavities of the first surface; and

a first roller and a second roller defining a nip point configured and dimensioned to receive the layer of perfluoropolyether bonded to the support layer, the sheet, and the material.

2. The laminate nanomold system of claim 1 , further comprising a tie-layer disposed between the layer of perfluoropolyether and the support layer to attach the support layer with the layer of perfluoropolyether.

3. The laminate nanomold system of claim 2 , wherein the tie-layer comprises a dual cure material.

4. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities comprise a predetermined shape selected from the group consisting of cylindrical, 200 nm diameter cylinders, cuboidal, 200 nm cuboidal, crescent, and concave disc.

5. The laminate nanomold system of claim 1 , wherein the plurality of cavities comprise cavities of a variety of predetermined shapes.

6. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 5 micrometers in a largest dimension.

7. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 1 micrometers in a largest dimension.

8. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 750 nanometers in a largest dimension.

9. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 500 nanometers in a largest dimension.

10. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 300 nanometers in a largest dimension.

11. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 200 nanometers in a largest dimension.

12. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 100 nanometers in a largest dimension.

13. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 75 nanometers in a largest dimension.

14. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 50 nanometers in a largest dimension.

15. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 40 nanometers in a largest dimension.

16. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 30 nanometers in a largest dimension.

17. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 20 nanometers in a largest dimension.

18. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 10 nanometers in a largest dimension.

19. The laminate nanomold system of claim 1 , wherein the perfluoropolyether layer is less than about 40 micrometers thick.

20. The laminate nanomold system of claim 1 , wherein the perfluoropolyether layer is less than about 30 micrometers thick.

21. The laminate nanomold system of claim 1 , wherein the perfluoropolyether layer is less than about 20 micrometers thick.

22. The laminate nanomold system of claim 1 , wherein the perfluoropolyether layer is less than about 15 micrometers thick.

23. The laminate nanomold system of claim 1 , wherein the perfluoropolyether layer is less than about 10 micrometers thick.

24. The laminate nanomold system of claim 1 , wherein the support layer comprises a polymer.

25. The laminate nanomold system of claim 24 , wherein the polymer of the support layer comprises polyethylene terephthalate.

26. The laminate nanomold system of claim 1 , wherein the support layer is less than about 20 mil thick.

27. The laminate nanomold system of claim 1 , wherein the support layer is less than about 15 mil thick.

28. The laminate nanomold system of claim 1 , wherein the support layer is less than about 10 mil thick.

29. The laminate nanomold system of claim 1 , wherein the support layer is less than about 5 mil thick.

30. The laminate nanomold system of claim 1 , wherein the support layer introduces a modulus of greater than 1000 to the laminate.

31. The laminate nanomold system of claim 3 , wherein the layer of perfluoropolyether is attached to the support layer by photoinitiator coupling and thermalinitiator coupling.

32. The laminate nanomold system of claim 1 , wherein the perfluoropolyether comprises a photocurable component.

33. The laminate nanomold system of claim 1 , wherein the layer of perfluoropolyether has a footprint greater than about 25 square centimeters.

34. The laminate nanomold system of claim 1 , wherein the layer of perfluoropolyether has a footprint greater than about 50 square centimeters.

35. The laminate nanomold system of claim 1 , wherein the layer of perfluoropolyether has a footprint greater than about 100 square centimeters.

36. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 5 micrometers from an adjacent cavity.

37. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 2 micrometer from an adjacent cavity.

38. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 1 micrometers from an adjacent cavity.

39. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 750 nanometers from an adjacent cavity.

40. The laminate nanomold system of claim 1 , wherein each cavity of the plurality of cavities is less than about 500 nanometers from an adjacent cavity.

41. The laminate nanomold system of claim 1 , wherein the perfluoropolyether has less than about 10 percent sol fraction.

42. The laminate nanomold system of claim 1 , wherein the first roller and second roller are configured and dimensioned to pinch the layer of perfluoropolyether, the support layer, the sheet, and the material.

43. A laminate nanomold comprising:

a layer of perfluoropolyether, wherein the layer of perfluoropolyether includes a first surface defining a plurality of cavities, wherein each cavity of the plurality of cavities has a predetermined shape and is less than about 10 micrometers in a largest dimension, and wherein the layer of perfluoropolyether is less than about 75 micrometers in thickness; and

a support layer bonded to a second surface of the layer of perfluoropolyether opposite the first surface, wherein the support layer bonded to the layer of perfluoropolyether has a combined modulus greater than about 1400 MPa.

Assignments (3)
ASSIGNMENT OF IP SECURITY AGREEMENT RECORDED AT REEL/FRAME 062643/0791 Recorded May 11, 2023
From: HCR COLLATERAL MANAGEMENT, LLC, AS RETIRING SUBORDINATED LENDER
To: HEALTHCARE ROYALTY PARTNERS IV, L.P., AS SUCCESSOR SUBORDINATED LENDER
Reel/Frame 063627/0307 →
SECURITY INTEREST Recorded Feb 9, 2023
From: LIQUIDIA TECHNOLOGIES, INC.
To: HCR COLLATERAL MANAGEMENT, LLC
Reel/Frame 062643/0791 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 29, 2008
From: ROLLAND, JASON P.; MAYNOR, BENJAMIN; HENN, ROBERT L.
To: LIQUIDIA TECHNOLOGIES, INC.
Reel/Frame 022035/0272 →
Continuity (1)
Related Publication 20080131692A1 · Jun 5, 2008