Foam in place conductive polyurethane foam

Details Foam in place conductive polyurethane foam Foam in place conductive polyurethane foam

C - Chemistry, Metallurgy

08

G

403/25

C08G 18/06 (2006.01) C08G 18/08 (2006.01) C08J 9/00 (2006.01) C08K 3/04 (2006.01) C08K 3/08 (2006.01) C08K 9/12 (2006.01) H01B 1/22 (2006.01) H01B 1/24 (2006.01) H05K 9/00 (2006.01)

Patent

CA 2002152

An electrically conductive elastomeric foam for use in EMI/RFI shielding applications, especially as a gap filler or, caulk. The foam is based upon a polyurethane system wherein the electrically conductive filler is intermixed with either the isocyanate or active hydrogen containing component before reacting the two components to create the foam. The foam is lightweight, flexible, highly conductive, capable of withstanding cyclical vibration and is capable of adhering to various conductive surfaces such as metal, composites and glass. The foam is preferably room temperature curable and consists of a water activable prepolymer or quasi prepolymer system.

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