The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 2012
Filed:
Dec. 03, 2009
Naohiro Sonobe, Fukushima, JP;
Susumu Morimoto, Tokyo, JP;
Hideyuki Yoshihara, Tokyo, JP;
Hiroyuki Hanatsuka, Fukushima, JP;
Makoto Arakawa, Fukushima, JP;
Naohiro Sonobe, Fukushima, JP;
Susumu Morimoto, Tokyo, JP;
Hideyuki Yoshihara, Tokyo, JP;
Hiroyuki Hanatsuka, Fukushima, JP;
Makoto Arakawa, Fukushima, JP;
Kureha Corporation, Tokyo, JP;
Abstract
An adsorbent for oral administration, characterized by comprising a spherical activated carbon, wherein a diameter is 0.01 to 1 mm, a specific surface area determined by Langmuir's adsorption equation is 1000 m/g or more, and a diffraction intensity ratio, an R value, determined by an equation (1):=()/()  (1)wherein Iis a diffraction intensity when a diffraction angle (θ) of an X-ray diffractometry is 15°, Iis a diffraction intensity when a diffraction angle (θ) of an X-ray diffractometry is 35°, and Iis a diffraction intensity when a diffraction angle (θ) of an X-ray diffractometry is 24°, is 1.4 or more; and an adsorbent for an oral administration, characterized by comprising a surface-modified spherical activated carbon, wherein a diameter is 0.01 to 1 mm, a specific surface area determined by Langmuir's adsorption equation is 1000 m/g or more, a total amount of acidic groups is 0.40 to 1.00 meq/g, a total amount of basic groups is 0.40 to 1.10 meq/g, and a diffraction intensity ratio, an R value, determined by equation (1) is 1.4 or more. The adsorbents for oral administration exhibit a useful selective adsorbability, that is, a less adsorbability of useful substances in a body, and a greater adsorbability of toxic substances.