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:
Mar. 03, 2020
Filed:
Dec. 12, 2017
Applicant:
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Inventors:
Assignee:
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/30 (2006.01); C08K 5/17 (2006.01); C08F 8/24 (2006.01); C08F 8/12 (2006.01); C07C 229/24 (2006.01); C08F 12/18 (2006.01); C08F 12/28 (2006.01); C08F 14/14 (2006.01); C08G 69/26 (2006.01); C08J 7/12 (2006.01); C08J 7/14 (2006.01);
U.S. Cl.
CPC ...
C08K 5/175 (2013.01); C07C 229/24 (2013.01); C08F 8/12 (2013.01); C08F 8/24 (2013.01); C08F 8/30 (2013.01); C08F 12/18 (2013.01); C08F 12/28 (2013.01); C08F 14/14 (2013.01); C08G 69/26 (2013.01); C08J 7/126 (2013.01); C08J 7/14 (2013.01);
Abstract
The present invention relates to an iminodiacetic acid chelating resin, wherein the water amount in the resin is from 50 to 75% and the volume ratio of Na form/H form is from 1.4 to 1.8. Furthermore, the present invention relates to a method for producing an iminodiacetic acid chelating resin, wherein an alcohol is used as a solvent for the amination reaction of a chloromethylated styrene crosslinked copolymer with iminodiacetonitrile or sodium iodide and/or potassium iodide is used as a catalyst for the amination reaction.