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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.:

US 9090468 B1

PDFFull Text
Date of Patent:
Jul. 28, 2015

Filed:

Nov. 20, 2008

Process of making metal chalcogenide particles

Applicants:

Zhigang Shen, Singapore, SG;

Meng Tack NG, Singapore, SG;

Sung Lai Jimmy Yun, Singapore, SG;

Jianfeng Chen, Singapore, SG;

Yit Wooi Goh, Singapore, SG;

Wei Kian Soh, Singapore, SG;

Inventors:

Zhigang Shen, Singapore, SG;

Meng Tack Ng, Singapore, SG;

Sung Lai Jimmy Yun, Singapore, SG;

Jianfeng Chen, Singapore, SG;

Yit Wooi Goh, Singapore, SG;

Wei Kian Soh, Singapore, SG;

Assignee:

NANOMATERIALS TECHNOLOGY PTE LTD, Singapore, SG;

Attorney:

Ladas & Parry LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Colette Nguyen

Int. Cl.
CPC ...
C01B 19/00 (2006.01); C01B 17/20 (2006.01); B82Y 30/00 (2011.01); C01F 17/00 (2006.01); C01G 3/02 (2006.01); C01G 9/02 (2006.01); C01G 49/08 (2006.01); C09C 3/08 (2006.01); C09C 3/12 (2006.01); C09C 1/04 (2006.01); C09C 1/24 (2006.01);
U.S. Cl.
CPC ...
C01B 17/20 (2013.01); B82Y 30/00 (2013.10); C01F 17/0043 (2013.01); C01G 3/02 (2013.01); C01G 9/02 (2013.01); C01G 49/08 (2013.01); C09C 1/043 (2013.01); C09C 1/24 (2013.01); C09C 3/08 (2013.01); C09C 3/12 (2013.01); C01P 2002/72 (2013.01); C01P 2004/04 (2013.01); C01P 2004/52 (2013.01); C01P 2004/64 (2013.01); C01P 2006/22 (2013.01);
Abstract

There is disclosed a process of making metal chalcogenide particles. The process comprises the steps of reacting a metal salt solution with a precipitant solution under conditions to form metal chalcogenide particles and by-product thereof, coating the metal chalcogenide particles with a surfactant; and separating the surfactant coated chalcogenide particles from the by-product to obtain metal chalcogenide particles substantially free of by-product.

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