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. 02, 1977
Filed:
Feb. 03, 1975
Applicant:
Inventors:
Kouichi Ban, Niihama, JA;
Yasumiti Namba, Niihama, JA;
Yukihiro Sekine, Niihama, JA;
Masaaki Matsuda, Niihama, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 / ; 55 72 ;
Abstract
A novel heavy metal-binding agent is obtained by reacting a resin containing in its molecular chain --NH--, --NH.sub.2, or both thereof with carbon disulfide and, if necessary, treating the reaction product thus obtained with a base. As compared with conventionally known metal-binding agents, the present metal-binding agent can remove heavy metals more effectively from solutions or gases containing these metals even in a range of extremely low concentrations, and, hence, is useful for pollution control.