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:
Mar. 24, 2015
Filed:
Mar. 20, 2012
Applicants:
Lane George Shaw, Milton, GA (US);
Gary Lee Hillebrenner, Quincy, IL (US);
Inventors:
Lane George Shaw, Milton, GA (US);
Gary Lee Hillebrenner, Quincy, IL (US);
Assignee:
J.M. Huber Corporation, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/26 (2006.01); C01F 11/18 (2006.01); C09C 1/02 (2006.01); C09C 3/04 (2006.01);
U.S. Cl.
CPC ...
C01F 11/185 (2013.01); C09C 1/021 (2013.01); C09C 3/041 (2013.01); C08K 3/26 (2013.01); C01P 2004/51 (2013.01); C01P 2004/52 (2013.01); C01P 2004/61 (2013.01);
Abstract
Calcium carbonate particles having very narrow particle sizes with a controlled Dand minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.