Incompressible moisture-scavenging article

Patent metadata

Field	Value
Publication number	US-11660835-B2
Application number	US-202016940628-A
Country	US
Kind code	B2
Filing date	Jul 28, 2020
Priority date	Sep 30, 2019
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

Articles and insulating systems include a wicking layer, an incompressible insulation layer, and a water scavenging system comprising a superhydrophobic layer in operative communication with one or more water collecting components.

First claim

What is claimed is:

1. An article, comprising:
a wicking layer;
an incompressible insulation layer;
a water scavenging system comprising (i) a superhydrophobic layer including one or more channels, (ii) one or more conduits, and (iii) one or more water collecting components;
wherein the one or more channels is in operative liquid communication with the one or more water collecting components via the one or more conduits; and
an exterior fibrous fleece;
wherein wicking layer and the external fibrous fleece define an interior space therebetween, and wherein the one or more water collecting components is located externally from the interior space.

2. The article of claim 1 , wherein the wicking layer comprises:
an innermost layer of the article; and
a fabric.

3. The article of claim 1 , wherein the incompressible insulation layer comprises at least one layer of individually tiled aerogel components that are adhered to at least one flexible substrate.

4. The article of claim 1 , wherein
the incompressible insulation layer is directly sandwiched between a first flexible substrate and a second flexible substrate, and
wherein at least one of the first flexible substrate or the second flexible substrate comprise a vapor-permeable liquid barrier layer.

5. The article of claim 1 , wherein the incompressible insulation layer comprises at least one layer of individually tiled aerogel components having an average thickness from about 0.1 mm to about 2 mm.

6. The article of claim 5 , wherein the at least one layer of individually tiled aerogel components includes a first individual aerogel component having a side edges perpendicular to a first outer surface of the first individual aerogel component and a second outer surface of the first individual aerogel component, and a second individual aerogel component having one or more side edges angled from a first outer surface of the second individual aerogel component to a second outer surface of the second individual aerogel component.

7. The article of claim 1 , wherein the incompressible insulation layer comprises at least one layer of individually tiled aerogel components comprising a polymer aerogel.

8. The article of claim 4 , wherein the first flexible substrate comprises a vapor-permeable liquid barrier layer comprising a hydrophilic fabric, a microporous film, a monolithic film, or any combination thereof.

9. The article of claim 8 , wherein the vapor-permeable liquid barrier layer comprises a fabric of a stretched polytetrafluoroethylene (PTFE).

10. The article of claim 1 , wherein the superhydrophobic layer of the water scavenging system comprises a superhydrophobic coating on a water impermeable substrate.

11. The article of claim 10 , wherein the water impermeable substrate comprises a flexible rubber.

12. The article of claim 1 ,
wherein the one or more water collecting components are configured to be worn around an appendage of a user.

13. The article of claim 1 , wherein the one or more water collecting components comprise a water absorbing material comprising a superabsorbent polymer, hydrogel, or any combination thereof.

14. The article of claim 13 , wherein the water absorbing material comprises a polyacrylic acid.

15. The article of claim 1 , further comprising a fleece layer, wherein the incompressible insulation layer is disposed between the fleece layer and the wicking layer.

16. An insulating system, comprising:
a wicking layer;
an incompressible insulation layer;
a water scavenging system comprising (i) a superhydrophobic layer including one or more channels, (ii) one or more conduits, and (iii) one or more water collecting components;
wherein the one or more channels is in operative liquid communication with the one or more water collecting components via one or more conduits;
wherein at least the wicking layer and the incompressible insulation layer are loosely overlaid or releasably attached; and
a fibrous fleece;
wherein wicking layer and the external fibrous fleece define an interior space therebetween, and wherein the one or more water collecting components is located externally from the interior space.

17. A method of forming an insulating article, comprising:
providing or forming a wicking layer,
directly or indirectly overlying the wicking layer with an incompressible insulation layer; and
forming or providing a water scavenging system comprising (i) a superhydrophobic layer including one or more channels, (ii) one or more conduits, and (iii) one or more water collecting components; wherein the one or more channels is in liquid operative communication with the one or more water collecting components via one or more conduits;
wherein wicking layer and the external fibrous fleece define an interior space therebetween, and wherein the one or more water collecting components is located externally from the interior space.

18. The article of claim 1 , wherein the one or more water collecting components comprises a reservoir configured to be directly or indirectly worn by a user, and wherein the one or more water collecting components are removably coupled to the superhydrophobic layer.

19. The article of claim 18 , wherein the one or more water collecting components comprises is configured to be worn around a user's wrist, ankle, or waist.

Assignees

• Univ Johns Hopkins

Inventors

• Benkoski Jason J
• Gerasopoulos Konstantinos
• Griffiths Steven M
• Biermann Paul J
• Morris Melanie L
• Calderon-Colon Xiomara

Classifications

• B32B5/245

  another layer next to it being a foam layer · CPC title

• B32B2323/00

  Polyalkenes · CPC title

• B32B2262/0253

  Polyolefin fibres · CPC title

• B32B5/02

  characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)} · CPC title

• B32B2305/026

  Porous · CPC title