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.

Date of Patent:
Aug. 10, 2021

Filed:

Jul. 25, 2018
Applicant:

South China University of Technology, Guangdong, CN;

Inventors:

Dehua Hu, Guangdong, CN;

Qinglin Jiang, Guangdong, CN;

Yuguang Ma, Guangdong, CN;

Duokai Zhao, Guangdong, CN;

Jiang Zhang, Guangdong, CN;

Zhongquan Mao, Guangdong, CN;

Yao Yao, Guangdong, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/06 (2006.01); H01F 1/42 (2006.01);
U.S. Cl.
CPC ...
C07D 471/06 (2013.01); H01F 1/42 (2013.01);
Abstract

The anionic imide material is obtained by preparing a solution or a suspension of an imide compound, then reducing and drying the same; the anionic material comprises anions of an imide compound, the anions being at least one selected from the following formula I or formula II; in formula I or II: n=1, 2, or 3; R, Rare respectively selected from at least one of H, amino, carboxyl, hydroxy, thiol, and pyridyl groups; X-Xare respectively an electron withdrawing group, and specifically selected from one of H, F, Cl, Br, CN, and NOgroups. The anionic material of the present invention has a Curie temperature larger than room temperature and ferromagnetism, and is an organic magnetic material; it may be used for preparing an organic magnetic material and/or an organic magnetic device.


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