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:
Dec. 28, 2021
Filed:
Aug. 09, 2017
Applicant:
Baotou Rare Earth Research and Development Center, Chinese Academy of Sciences, Batou, CN;
Inventors:
Chengyu Li, Batou, CN;
Hongjie Zhang, Batou, CN;
Lei Tian, Batou, CN;
Jianyi Chi, Batou, CN;
Ran Pang, Batou, CN;
Wei Jiang, Batou, CN;
Ming Wang, Batou, CN;
Bin Wang, Batou, CN;
Kaiqiang Dong, Batou, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 3/06 (2006.01); C09C 1/00 (2006.01); C01F 17/288 (2020.01);
U.S. Cl.
CPC ...
C09C 3/06 (2013.01); C01F 17/288 (2020.01); C09C 1/00 (2013.01); C01P 2006/62 (2013.01); C01P 2006/63 (2013.01); C01P 2006/64 (2013.01);
Abstract
The present invention discloses a rare-earth sulfide colorant and a preparation method thereof. The chemical formula of the rare-earth sulfide colorant of the present invention is RESy [REPO], wherein RE is selected from one or more of La, Ce, Pr, Nd and Sm, and the ratio of y to x is 0.001 to 0.65. The present invention also discloses use of a phosphorus-containing compound for increasing the vividness of a rare-earth sulfide colorant.