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. 06, 2013
Filed:
Mar. 06, 2009
Applicants:
Ismail Yildirim, Milledgeville, GA (US);
Mikel Dean Smith, Tennille, GA (US);
Robert Pruett, Milledgeville, GA (US);
Inventors:
Ismail Yildirim, Milledgeville, GA (US);
Mikel Dean Smith, Tennille, GA (US);
Robert Pruett, Milledgeville, GA (US);
Assignee:
Imerys Pigments, Inc., Roswell, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/02 (2006.01); C09C 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein are methods for removing discoloring impurities, such as carbon impurities, particularly graphite, from kaolin clay to enhance the brightness of the kaolin clays. The methods include reverse flotation processes. Also disclosed herein are high brightness kaolin products, and the uses thereof.