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Article comprising molded circuit

  • US 6,110,576 A
  • Filed: 10/16/1998
  • Issued: 08/29/2000
  • Est. Priority Date: 10/16/1998
  • Status: Expired due to Term
First Claim
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1. A molded circuit comprising:

  • at least a first thermoplastic polymeric material layer and a second thermoplastic polymeric material layer;

    said first thermoplastic polymeric material layer is an electrically insulating material having a volume resistivity of greater than about 1013 ohm-centimeter; and

    said second thermoplastic polymeric material layer is an electrically conductive material having a volume resistivity of less than about 2.0 ohm-centimeter, said second thermoplastic polymeric material layer has a composition in which conductive fibers are suspended within a thermoplastic polymeric material, said conductive fibers are present in an amount of at least about 6% by weight and no greater than about 25% by weight of said thermoplastic polymeric material and said fibers have an aspect ratio in the range of about 100;

    1 to about 2000;

    1,wherein said second thermoplastic polymeric material layer provides a path for an electrical current in said molded circuit.

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