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US 11,999,883 B2Granted
Lightweight RF shielding conductive elastomeric tape
AssigneeSwift Textile Metalizing LLC
InventorsBryan T. Wyrebek, Alexander T. Smith, Jared D G Butlin
Life of this patent
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Abstract
A lightweight electromagnetic wave shielding tape is disclosed. The tape includes a first polymer protective layer, a calendered conductive material layer coupled to a bottom side of the first polymer protective layer, and a second polymer protective layer coupled to a bottom side of the conductive material layer so that the conductive material layer is encapsulated within the protective layers. An adhesive layer can also be applied to one of the protective layers.
Claims24
A conductive elastomeric tape, comprising:
- a calendered conductive material layer comprising a top surface and a bottom surface, wherein the calendered conductive material layer was processed through a calender apparatus while applying pressure and heat;
- a polymer protective layer coating both the top surface and the bottom surface of the calendered conductive material, the polymer protective layer comprising a filling material selected from the group consisting of graphene, reduced graphene oxide, graphite, silver coated graphite, nickel coated graphite, copper coated graphite, gold coated graphite, magnetically permeable materials, ferrites, iron powder, copper powder, nickel powder and silver powder;
- and
- an adhesive layer coupled to a portion of the polymer protective layer,
- wherein the total thickness of a combined calendered conductive material layer and the polymer protective layer ranges from 0.004 inches to 0.008 inches,
- wherein the calendered conductive material layer comprises a first material layer being a woven fabric and a second material layer being one or more conductive materials, and
- wherein the calendered conductive material layer provides shielding of electromagnetic waves having a frequency between 1 KHz to 100 GHz at an attenuation of 0 to 120 dB.
4 more elements
A conductive elastomeric tape, comprising:
- a calendered conductive material layer comprising a top surface and a bottom surface, wherein the calendered conductive material layer was processed through a calender apparatus while applying pressure and heat;
- a polymer protective layer coating both the top surface and the bottom surface of the calendered conductive material, the polymer protective layer comprising a filling material selected from the group consisting of graphene, reduced graphene oxide, graphite, silver coated graphite, nickel coated graphite, copper coated graphite, gold coated graphite, magnetically permeable materials, ferrites, iron powder, copper powder, nickel powder and silver powder;
- and
- an adhesive layer coupled to a portion of the polymer protective layer,
- wherein the total thickness of a combined calendered conductive material layer and the polymer protective layer ranges from 0.004 inches to 0.008 inches,
- wherein the calendered conductive material layer comprises a first material layer being a woven fabric and a second material layer being one or more conductive materials;
- wherein the calendered conductive material layer provides shielding of electromagnetic waves having a frequency between 1 KHz to 100 GHz at an attenuation of 0 to 120 dB, and
- wherein the conductive elastomeric tape weighs between 2 to 8 ounces per square yard.
5 more elements
Dependencies are inferred from the claim text.