Vapor adsorbent for enclosed volumes

Patent metadata

Field	Value
Publication number	US-12558668-B2
Application number	US-202218060682-A
Country	US
Kind code	B2
Filing date	Dec 1, 2022
Priority date	Dec 1, 2021
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

Sorbent material sheets are attached to an inner surface of an article having an enclosed volume, such as a cadaver pouch, an ammunition storage container, or a film or video tape storage box. The sorbent material sheets adsorb vapors which are released by the contents of the enclosed volumes, while providing flexibility and without releasing particles which could contaminate the contents of the enclosed volume.

First claim

What is claimed is:

1 . A method of adsorbing vapors in an article having an enclosed volume, the method comprising:
providing in the enclosed volume a sorbent material sheet product; and contacting the vapors with the sorbent material sheet product, wherein the sorbent material sheet product comprises:
a sorbent material and a binder that holds the sorbent material in place, and
one or more polymeric scrims laminated to a surface of the sorbent material and the binder, and
wherein the article having an enclosed volume is one of a cadaver pouch, a box containing film, a box containing video tapes, or a box containing ammunition.

2 . The method of adsorbing vapors of claim 1 , wherein the sorbent material is selected from the group consisting of activated carbon, carbon nanotubes, graphenes, natural and synthetic zeolite, silica, silica gel, alumina, zirconia, diatomaceous earths, and combinations thereof.

3 . The method of adsorbing vapors of claim 1 , wherein the binder comprises one or more of polytetrafluoroethylenes (PTFE or TEFLON), polyvinyl fluorides or polyvinylidene fluorides (PVF or PVF 2 or PVDF), ethylene-propylene-diene (EPDM) rubbers, polyethylene oxides (PEO), UV curable acrylates, UV curable methacrylates, heat curable divinyl ethers, polybutylene terephthalate, acetal or polyoxymethylene resin, fluoroelastomers, perfluoroelastomers (FFKM) and/or tetrafluoro ethylene/propylene rubbers (FEPM), aramid polymers, para-aramid polymers, meta-aramid polymers, poly trimethylene terephthalate, ethylene acrylic elastomers, polyimide, polyamide-imides, polyurethanes, low density and high density polyethylene, polypropylene, biaxially oriented polypropylene (BoPP), polyethylene terephthalate (PET), biaxially oriented polyethylene terephthale (BoPET), polychloroprene, or copolymers or combinations thereof.

4 . The method of adsorbing vapors of claim 3 , wherein the binder is hydrophobic.

5 . The method of adsorbing vapors of claim 1 , wherein the sorbent material sheet product is flexible.

6 . The method of adsorbing vapors of claim 1 , wherein the one or more polymeric scrims allow the sorbent material sheet product to be welded with one or more plastics.

7 . The method of adsorbing vapors of claim 1 , wherein the one or more polymeric scrims allow the sorbent material sheet product to be sewn together.

8 . The method of adsorbing vapors of claim 1 , wherein the sorbent material sheet product contains perforations allowing fluids to pass through the sorbent material into an adsorbent layer.

9 . The method of adsorbing vapors of claim 1 , wherein the sorbent material is present on a surface of the sorbent material sheet product.

10 . The method of adsorbing vapors of claim 1 , wherein the article having an enclosed volume is a cadaver pouch that contains a cadaver or a part of a cadaver that is contaminated with at least one contaminant substance.

11 . The method of adsorbing vapors of claim 1 , wherein the article having an enclosed volume is a cadaver pouch that contains a cadaver or a part of a cadaver that is suspected of being contaminated with at least one contaminant substance.

12 . The method of adsorbing vapors of claim 1 , wherein the binder is fibrillated.

Assignees

• Calgon Carbon Corp

Inventors

• Butterworth Steven L

Classifications

• B01D53/0407

  Constructional details of adsorbing systems · CPC title

• B01D2257/7022

  Aliphatic hydrocarbons · CPC title

• B01D2253/25

  Coated, impregnated or composite adsorbents · CPC title

• B01D2253/102

  Carbon · CPC title

• A61G17/06

  Sacks for corpses; Corpse wrappings · CPC title