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:
Aug. 27, 2013
Filed:
Sep. 18, 2009
Tatsuoki Kohno, Tokyo, JP;
Akiko Suzuki, Tokyo, JP;
Shinji Murai, Sagamihara, JP;
Ichiro Tai, Tokyo, JP;
Tatsuoki Kohno, Tokyo, JP;
Akiko Suzuki, Tokyo, JP;
Shinji Murai, Sagamihara, JP;
Ichiro Tai, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
The present invention provides a functional powder capable of effectively adsorbing impurities in water treatment. The powder can be rapidly separated by use of magnetic force, and hence is excellent in workability. This functional powder comprises magnetic particles having surfaces modified with hydrophobic groups and hydrophilic groups loaded thereon. The hydrophobic groups have a function of adsorbing the impurities, and the hydrophilic groups have a function of dispersing the powder stably in water. The numbers M and N of the hydrophobic groups and the hydrophilic groups, respectively, satisfy the condition of 0.2<M/N<0.8, so that the adsorbability to impurities and the dispersion stability are both ensured.