Adsorbent for oral administration
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United States of America Patent
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Dec 14, 2004
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N/A
app pub date -
Oct 10, 2002
filing date -
Apr 11, 2001
priority date (Note) -
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Abstract
An adsorbent for an oral administration, comprising a porous spherical carbonaceous substance wherein a diameter is 0.01 to 1 mm, a specific surface area determined by a BET method is 700 m.sup.2 /g or more, a volume of pores having a pore diameter of 20 to 15000 nm is from not less than 0.04 mL/g to less than 0.10 mL/g, a total amount of acidic groups is 0.30 to 1.20 meq/g, and a total amount of basic groups is 0.20 to 1.00 meq/g, is disclosed.
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