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:
Jul. 07, 1992
Filed:
Jun. 07, 1990
Applicant:
Inventors:
Naguib Halaka, Sutter Creek, CA (US);
Joseph Iannicelli, Jekyll Island, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03B / ;
U.S. Cl.
CPC ...
209-5 ; 423118 ; 501146 ;
Abstract
The invention is directed to a method for reducing the viscosity and increasing the brightness of a kaolin clay by removal of mineral slimes having a particle size of less than about 0.2 micron. The process includes reflocculating an aqueous clay slurry by the addition of an overdose of dispersing agent. The reflocculated slurry is aged and dewatered by fractionation.