Sorbent devices
AssigneeCalgon Carbon Corporation
InventorsMichael Greenbank, Robert H. Vaughn, Robert Gebhard, Steven Evanovich, Walter G. Tramposch, David T. Doughty, Andrew Herrman, Matthew Adomaitis, Richard A. Mimna
Life of this patent
Estimating the term…
Abstract
Sorbent material sheets are wound around a center core of material that includes additional sorbent. This configuration further increases the packaging efficiency and performance of the sorbent material sheets as part of an overall housing or apparatus. In some embodiments, the sorbent material sheets are arranged in a stacked configuration. Configurations of the sorbent material sheets as part of a canister are also described.
Claims18
A vapor adsorbing canister comprising:
- a sorbent material sheet product,
- wherein the form of the sorbent material sheet product is flexible and is contained within a flexible canister and the sorbent material sheet product is selected from the group consisting of a rolled sheet that includes a sorbent and a binder, a shredded sheet that includes shredded strips of a sorbent and a binder, a sheet that includes cut shapes of a sorbent and a binder, strands of material formed from the fibrillation of sorbent with a binder polymer, a stacked sheet, and combinations thereof, wherein the binder comprises polytetrafluoroethylenes (PTFE or TEFLON), polyvinylidene fluorides (PVF2 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 terephthalate (BoPET), polychloroprene, or copolymers or combinations thereof,
- wherein the sorbent material sheet product has a void volume of about 10% to about 20%.
A rolled sorbent material sheet product, comprising:
- a sorbent material sheet defining an upper surface and a lower surface and having a total surface area, and which comprises a sorbent material and a binder,
- wherein the sorbent material sheet product is spiral wound to form adjacent sheet layers which allow fluid flow around and between adjacent sheet layers;
- wherein the spiral wound sorbent material sheet product defines a hollow central core which houses additional sorbent material, and
- wherein the binder comprises polytetrafluoroethylenes (PTFE or TEFLON), polyvinylidene fluorides (PVF2 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 terephthalate (BoPET), polychloroprene, or copolymers or combinations thereof,
- wherein the rolled sorbent material sheet product has a void volume of about 10% to about 20%.
Dependencies are inferred from the claim text.