US 11,999,883 B2
Lightweight RF shielding conductive elastomeric tape
Bryan T. Wyrebek, Bristol, CT (US); Alexander T. Smith, Simsbury, CT (US); and Jared D G Butlin, Longmeadow, MA (US)
Assigned to Swift Textile Metalizing LLC, Bloomfield, CT (US)
Filed by SWIFT TEXTILE METALIZING LLC, Bloomfield, CT (US)
Filed on Jul. 5, 2019, as Appl. No. 16/503,824.
Claims priority of provisional application 62/694,606, filed on Jul. 6, 2018.
Prior Publication US 2020/0010739 A1, Jan. 9, 2020
Int. Cl. C09J 9/02 (2006.01); B32B 5/02 (2006.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); C09J 11/04 (2006.01); H05K 9/00 (2006.01)
CPC C09J 9/02 (2013.01) [B32B 5/024 (2013.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); C09J 11/04 (2013.01); H05K 9/0081 (2013.01); B32B 2274/00 (2013.01); B32B 2307/202 (2013.01); B32B 2307/212 (2013.01); B32B 2405/00 (2013.01); B32B 2605/18 (2013.01); C09J 2203/326 (2013.01); C09J 2400/123 (2013.01); C09J 2400/163 (2013.01); C09J 2423/046 (2013.01); C09J 2423/106 (2013.01); C09J 2433/006 (2013.01); C09J 2463/006 (2013.01); C09J 2475/006 (2013.01); C09J 2477/006 (2013.01); C09J 2483/006 (2013.01)] 24 Claims
OG exemplary drawing
 
1. 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.