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:
Feb. 28, 2017
Filed:
Apr. 07, 2011
Applicants:
Guenter Wimmer, Meerbusch, DE;
Joachim Schölkopf, Killwangen, CH;
Hans-joachim Weitzel, Suhr, CH;
Fridolin Stauffer, Unterentfelden, CH;
Inventors:
Assignee:
Omya International AG, Oftringen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/25 (2006.01); A61Q 1/02 (2006.01); C09C 1/02 (2006.01); A61K 47/00 (2006.01); C09C 1/42 (2006.01);
U.S. Cl.
CPC ...
C09C 1/022 (2013.01); C09C 1/021 (2013.01); C09C 1/028 (2013.01); C09C 1/42 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/88 (2013.01);
Abstract
The present invention refers to a process to modify at least part of the surface of at least one mineral material, and to the use, as an additive in an aqueous suspension of mineral materials having a pH between 5 and 10, of at least one agent, wherein the additive allows for the formation of a low volume, high solids content filter or centrifuge cake on dewatering the suspension.