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:
Jun. 11, 1991
Filed:
Feb. 21, 1990
Applicant:
Inventors:
Rasik H Raythatha, Kingwood, TX (US);
Paul R Suitch, Milledgeville, GA (US);
E Wayne Andrews, Sandersville, GA (US);
Assignee:
ECC America Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106486 ; 106416 ; 501144 ; 501145 ;
Abstract
A method is provided for reducing the abrasiveness of calcined clay, e.g., kaolin clay. The method comprises intermixing the clay prior to calcination with a finely-divided silica, preferably in the form of colloidal or fumed silica, in an amount sufficient to reduce the abrasiveness of the calcined product.