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:
Aug. 21, 2007
Filed:
Aug. 30, 2004
Applicant:
Carl W. Nichols, Bozeman, MT (US);
Inventor:
Carl W. Nichols, Bozeman, MT (US);
Assignee:
Luzenac America, Inc., Greenwood Village, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a high solids mineral slurry having long term stability and a method for producing the same. Specifically, the present invention provides a talc slurry having a solids content of up to 65% and a stability against sedimentation for up to 100 days. The talc slurry of the present invention comprises a phyllosilicate mineral, a chelating agent and multivalent ions, wherein the slurry has a pH of between about 10.2 and about 11.8.