Porous material and a method for producing the same

  • US 6,399,669 B1
  • Filed: 09/17/1999
  • Issued: 06/04/2002
  • Est. Priority Date: 09/17/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A porous material comprising a dry gel of a polyimide resin, said porous material having an apparent density of 800 kg/m3 or less and a mean pore size of 1 μ

  • m or less.

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