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:
Aug. 24, 2021
Filed:
Sep. 22, 2017
Applicant:
Ferro Corporation, Mayfield Heights, OH (US);
Inventors:
Zeki Acar, Menen, BE;
Vincent Devreux, Menen, BE;
Greta Verspaille, Benen, BE;
Jürgen D'haeveloose, Menen, BE;
Emmanuelle Clabaux, Menen, BE;
Assignee:
Ferro Corporation, Mayfield Heights, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B 14/00 (2006.01); C09C 1/00 (2006.01); C09C 3/08 (2006.01); C09C 3/10 (2006.01); C09C 3/12 (2006.01); C09D 5/02 (2006.01); C09D 17/00 (2006.01); C09D 5/08 (2006.01); C09D 1/00 (2006.01); C09D 7/61 (2018.01);
U.S. Cl.
CPC ...
C09C 1/0006 (2013.01); C09C 1/00 (2013.01); C09C 3/08 (2013.01); C09C 3/10 (2013.01); C09C 3/12 (2013.01); C09D 1/00 (2013.01); C09D 5/02 (2013.01); C09D 5/028 (2013.01); C09D 5/084 (2013.01); C09D 7/61 (2018.01); C09D 17/004 (2013.01); C01P 2006/22 (2013.01); C01P 2006/90 (2013.01);
Abstract
The present invention is directed to a method for manufacturing a bismuth based pigment having an improved alkaline resistance, the method comprising: i) obtaining a dried bismuth based pigment; ii) encapsulation of the bismuth based pigment using a chelating agent; iii) final processing of the encapsulated pigment; and v) drying of the pigment. In addition, the present invention is directed to a bismuth based pigment encapsulated by a layer of chelating agent.