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. 17, 2025
Filed:
Jan. 31, 2020
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Daniel E. Gerard, Basel, CH;
Lassi Karvonen, Basel, CH;
Assignee:
Omya International AG, Oftringen, CH;
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/02 (2006.01); C01B 25/32 (2006.01); C09C 3/04 (2006.01);
U.S. Cl.
CPC ...
C09C 1/022 (2013.01); C01B 25/327 (2013.01); C09C 3/041 (2013.01); C01P 2004/51 (2013.01); C01P 2006/12 (2013.01);
Abstract
The present invention relates to a process for producing an aqueous suspension of surface-reacted calcium salt particles by mixing a calcium salt excluding monocalcium phosphate and dicalcium phosphate, a calcium phosphate selected from monocalcium phosphate and/or dicalcium phosphate, with water, and grinding the obtained aqueous suspension at a pH value of at least 4.2 to form an aqueous suspension of surface-reacted calcium salt particles.