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:
Mar. 10, 2020
Filed:
Dec. 08, 2015
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Marc Maurer, Village-Neuf, FR;
Mathieu Skrzypczak, Terrace Park, OH (US);
Luis Pedroso, Coimbra, PT;
Holger Spiegel, Villach, AT;
Assignee:
OMYA INTERNATIONAL AG, Oftringen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F 11/00 (2006.01); C01F 11/18 (2006.01); D21H 17/67 (2006.01); D21H 19/38 (2006.01); D21H 11/12 (2006.01);
U.S. Cl.
CPC ...
C01F 11/183 (2013.01); C01F 11/18 (2013.01); C01F 11/182 (2013.01); D21H 11/12 (2013.01); D21H 17/675 (2013.01); D21H 19/385 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/60 (2013.01);
Abstract
The present invention relates to a process for the preparation of precipitated calcium carbonate allowing for a more sustainable and cost-efficient use of milk of lime. The obtainable products show good optical properties as well as fine particle size distributions.