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Nonwoven composites and related products and methods

  • US 7,785,544 B2
  • Filed: 04/30/2009
  • Issued: 08/31/2010
  • Est. Priority Date: 10/28/2002
  • Status: Expired due to Fees
First Claim
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1. An improved diesel particulate filter for a vehicle comprising:

  • a vehicle having a diesel engine;

    a substrate comprising;

    bonded ceramic fibers forming a rigid non-woven matrix, wherein the ceramic fibers are bonded by a sintering process;

    pore space of greater than 60% in the substrate;

    a plurality of channels in the substrate, wherein the channels are in a cellular configuration; and

    wherein the substrate is a non-pleated construction;

    the substrate having a wall-flow configuration; and

    the substrate adapted for use in the vehicle as a diesel exhaust particulate filter.

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