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Absorption cell and manufacturing method thereof

  • US 8,808,436 B2
  • Filed: 11/01/2011
  • Issued: 08/19/2014
  • Est. Priority Date: 12/10/2010
  • Status: Expired due to Fees
First Claim
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1. An absorption cell comprising:

  • an absorption portion formed of an absorbent material; and

    a protective layer formed by a process of coating a mixture of two or more materials on the absorption portion and a process of forming a plurality pore parts in the protective layer by removing one of the two or more materials,wherein the absorbent material includes a first absorbent,the mixture of two or more materials includes a second absorbent having a higher density than the first absorbent, the second absorbent not being removed from the mixture of two or more materials, andthe protective layer is an outermost layer of the absorption cell, the protective layer being coated on an outer surface of the absorption portion so as to prevent particles from breaking off from the absorption portion.

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