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:
Apr. 07, 2009
Filed:
Aug. 28, 2007
Applicants:
Patrick A. C. Gane, Studenweg, CH;
Matthias Buri, Mätteliweg, CH;
Beat Karth, Erlenweg, CH;
Inventors:
Assignee:
Omya Development AG, Oftringen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/26 (2006.01); C08K 3/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the use of a weakly ionic and water-soluble copolymer as a grinding aid agent for grinding mineral matter in aqueous suspension in order to obtain aqueous suspensions of refined mineral matter, with a dry matter concentration that can be high, with a low Brookfield™ viscosity that remains stable over time, having the property that it presents a pigmentary surface area the ionic charge of which, as determined by ionic titration, is low. The invention relates to the aqueous suspensions of mineral matter obtained and their use in the fields of paper, paint and plastics.