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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 11999859 B1

PDFFull Text
Date of Patent:
Jun. 04, 2024

Filed:

Aug. 16, 2023

Preparation method of copper green rust pigment that can replace hayeob pigment in traditional dancheong

Applicant:

National Research Institute of Cultural Heritage, Daejeon, KR;

Inventors:

Yeong Seok Kang, Daejeon, KR;

Sun Myung Lee, Daejeon, KR;

Ju Hyun Park, Daejeon, KR;

Seong Woo Mun, Daejeon, KR;

Assignee:

National Research Institute of Cultural Heritage, Daejeon, KR;

Attorney:

Leydig, Voit & Mayer, Ltd.

Primary Examiner:

Colin W Slifka

Int. Cl.
CPC ...
C09C 1/62 (2006.01); B22F 1/145 (2022.01); B22F 9/04 (2006.01); C09C 3/00 (2006.01); C09C 3/04 (2006.01); C09C 3/06 (2006.01); C22C 9/02 (2006.01); C22C 9/04 (2006.01);
U.S. Cl.
CPC ...
C09C 1/627 (2013.01); B22F 1/145 (2022.01); B22F 9/04 (2013.01); C09C 1/622 (2013.01); C09C 3/006 (2013.01); C09C 3/041 (2013.01); C09C 3/06 (2013.01); C22C 9/02 (2013.01); C22C 9/04 (2013.01); B22F 2301/10 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2006/63 (2013.01);
Abstract

The present invention relates to a preparation method of a copper green rust pigment, particularly a preparation method of a copper green rust pigment that can replace the traditional Dancheong Hayeob pigment comprising the following steps: a step of preparing a copper powder comprising at least one of copper; and a copper alloy comprising copper and at least one of tin (Sn), zinc (Zn), and lead (Pb); and a step of corroding the copper powder by mixing the copper powder with a corrosive agent containing sodium chloride and ammonium chloride. The corrosive agent includes 75 to 90 weight % of the sodium chloride and 10 to 25 weight % of the ammonium chloride based on the total weight.

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Kang, Yeong. (2024). Preparation method of copper green rust pigment that can replace hayeob pigment in traditional dancheong (U.S. Patent No. 11999859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11999859

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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