Method for preparing a porous inorganic coating on a porous support using certain pore fillers

  • US 20080299349A1
  • Filed: 07/19/2007
  • Published: 12/04/2008
  • Est. Priority Date: 05/31/2007
  • Status: Active Grant
First Claim
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1. A method for preparing a porous inorganic coating on a porous support, which comprises:

  • providing a porous support comprising a first end, a second end, and a plurality of inner channels having surfaces defined by porous walls and extending through the support from the first end to the second end;

    modifying the inner channel surfaces of the support by applying to the inner channel surfaces a composition comprising an organic pore-filling material selected from protein particles, starch particles, synthetic polymer particles, and combinations thereof;

    applying to the modified inner channel surfaces a coating comprising inorganic particles; and

    heating the coated support to remove the organic pore-filling material, leaving a porous inorganic coating on the porous support.

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