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:
Nov. 16, 1993
Filed:
Oct. 15, 1992
Applicant:
Inventors:
Weyman H Dunaway, Sandersville, GA (US);
Paul R Suitch, Milledgeville, GA (US);
David S Bokor, Sandersville, GA (US);
Raymond B McNeeley, Davisboro, GA (US);
Michael D Smith, Sandersville, GA (US);
Tony May, Sandersville, GA (US);
Assignee:
ECC International Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106416 ; 106484 ; 501141 ; 501150 ; 241 23 ; 241 24 ; 241 29 ;
Abstract
A method for preparing a calcined kaolin clay powder having good high shear rheology in high solids aqueous slurries. A kaolin clay powder of fine particle size is calcined at a sufficient temperature and for a sufficient period to destroy the crystallinity thereof; and the calcined product is dry milled in a media mill, using a work input of from 100 to 160 hp-hr/ton of dry clay.