Conductive Webs Containing Electrical Pathways and Method For Making Same
First Claim
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1. A conductive material comprising:
- a conductive nonwoven web comprising a first fiber combined with a second fiber, the first fiber comprising conductive fibers, the conductive fibers comprising carbon fibers, the second fiber comprising pulp fibers, synthetic fibers, or mixtures thereof, the conductive fibers being present in the nonwoven web in an amount from about 5% by weight to about 50% by weight; and
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wherein the conductive nonwoven web includes conductive zones and non-conductive zones, the non-conductive zones comprising ultrasonically treated areas.
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Abstract
Presented is a variety of products and apparatuses employing a conductive nonwoven web. Products and apparatuses include an RFID system, a radiofrequency shielding system, a flexible electronic circuit component, a heating element, an antenna, an electromagnetic energy shield, a membrane switch, a keypad, and a packaging system. In one embodiment, the conductive nonwoven web contains conductive carbon fibers in combination with pulp fibers and/or synthetic fibers. Electric pathways are formed into the conductive material using ultrasonic energy. The electric pathways can be used to produce various electronic devices.
121 Citations
26 Claims
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1. A conductive material comprising:
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a conductive nonwoven web comprising a first fiber combined with a second fiber, the first fiber comprising conductive fibers, the conductive fibers comprising carbon fibers, the second fiber comprising pulp fibers, synthetic fibers, or mixtures thereof, the conductive fibers being present in the nonwoven web in an amount from about 5% by weight to about 50% by weight; and
;wherein the conductive nonwoven web includes conductive zones and non-conductive zones, the non-conductive zones comprising ultrasonically treated areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification