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. 12, 1996
Filed:
Dec. 28, 1994
Applicant:
Inventors:
Assignee:
J. M. Huber Corporation, Macon, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03B / ; B03B / ; B03B / ; C09C / ;
U.S. Cl.
CPC ...
209164 ; 209-5 ; 209 10 ; 209 39 ; 210767 ; 501148 ; 501149 ; 106486 ; 106487 ; 1621815 ; 1621818 ;
Abstract
A low brightness pigment and method is provided from a heretofore rejected waste kaolin stream. Kaolin processing rejects are high in iron-stained TiO.sub.2. After separating the stained TiO.sub.2 from the high brightness kaolin and concentrating the resulting fraction, the material can be processed to produce a low brightness pigment suitable of many applications where lower brightness is desirable, such as coating paper board without mottling.