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:
Jul. 07, 1981
Filed:
Mar. 05, 1979
Applicant:
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ; B01J / ;
U.S. Cl.
CPC ...
521 32 ; 423100 ;
Abstract
A chelate resin produced by reacting (A) a resin having one or more primary and/or secondary amino groups in the molecule with (B) a polyfunctional compound having at least two reactive groups with amine and (C) an amino compound having one or more primary and/or secondary amino groups, or with a reaction product of said (B) polyfunctional compound and said (C) amino compound, shows excellent heavy metal collecting ability without being influenced by other coexisting ions.