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:
Jun. 11, 2019
Filed:
Feb. 12, 2015
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Assignee:
Omya International AG, Oftringen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/02 (2006.01); C08K 3/26 (2006.01);
U.S. Cl.
CPC ...
C09C 1/021 (2013.01); C08K 3/26 (2013.01); C01P 2002/88 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/82 (2013.01); C08K 2003/265 (2013.01);
Abstract
A process for the preparation of a mineral filler product is disclosed, the process comprising a step of dry grinding a calcium carbonate-containing material in a mixture obtained by contacting the calcium carbonate-containing material with at least one grinding agent selected from specific styrene-maleic anhydride co-polymers and/or specific derivatives of styrene-maleic anhydride co-polymers.