Metal fiber mat/polymer composite

Details Metal fiber mat/polymer composite Metal fiber mat/polymer composite

B - Operations, Transporting

22

F

18/1028, 154/115

B22F 9/06 (2006.01) B29C 70/08 (2006.01) B29C 70/12 (2006.01) B29C 70/50 (2006.01) B29C 70/88 (2006.01) B32B 15/02 (2006.01) B32B 15/08 (2006.01) H01B 1/22 (2006.01)

Patent

CA 2007161

The present invention provides a metal/polymer composite comprising a polymeric substrate and a sintered mat of randomly-oriented metal fibers embedded therein, the fibers having a substantially circular cross-section and a diameter of about 10 to 200 µm. The polymeric substrate is typically a thin, flexible sheet-like material having a pair of planar surfaces. The polymeric substrate is preferably thermoformable. If thermoformability is desired the metal will have a melting point of less than the thermoforming temperature of the polymeric substrate. The thermoformable metal/polymer composite of the present invention may be stretched to at least 20%, and often can be stretched at least 200% of its original dimensions, at least in certain regions, without loss of electrical continuity or EMI shielding properties. The present invention also provides a method of making a metal/polymer composite and a sintered mat of randomly-oriented metal fibers.

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