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:
Jun. 07, 1977
Filed:
Sep. 11, 1975
Applicant:
Inventors:
Masahide Hirai, Uji, JA;
Mikio Fujimura, Kamo, JA;
Masahiro Kazigase, Uji, JA;
Minoru Saito, Uji, JA;
Assignee:
Unitika Ltd., Amagasaki, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08J / ;
U.S. Cl.
CPC ...
260 / ; 260 515 ; 260 54 ; 260 / ;
Abstract
A high adsorption capacity phenolic chelate resin consisting of a heavy metal-adsorbing phenolic chelate resin, containing iminodiacetic acid groups in the phenol nuclei, and having an adsorbability to a heavy metal in the proportion of at least 1.2 m equivalent per g of dried terminal Na type resin, said phenolic chelate resin being prepared from phenols, aldehydes and iminodiacetic acid.