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. 09, 2020
Filed:
Jul. 29, 2016
Omya International Ag, Oftringen, CH;
Holger Spiegel, Villach, AT;
Wolfgang Kreuger, Feistritz/Rosental, AT;
Mathieu Skrzypczak, Terrace Park, OH (US);
Joe Wenk, Kingsport, TN (US);
Michael Dalton, Muttenz, CH;
Aaro Salonen, Arlesheim, CH;
Marc Maurer, Village-Neuf, FR;
Patrick A. C. Gane, Rothrist, CH;
Catherine Jean Ridgway, Mühlethal, CH;
OMYA INTERNATIONAL AG, Oftringen, CH;
Abstract
The present invention is directed to a process for producing precipitated calcium carbonate with improved resistance to structural breakdown, wherein the milk of lime is carbonated in the presence of at least one gas other than carbon dioxide, or the carbonation is carried out in the presence of a static gas bubble comminution unit as well as to precipitated calcium carbonate obtained by such a process.