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:
May. 10, 2022
Filed:
Nov. 03, 2015
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Michel Schenker, Schönenwerd, CH;
Matthias Buri, Rothrist, CH;
Lars Andersson, Kilchberg, CH;
Daniel Gantenbein, Basel, CH;
Patrick A. C. Gane, Rothrist, CH;
Assignee:
OMYA INTERNATIONAL AG, Oftringen, CH;
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/67 (2006.01); D21H 17/28 (2006.01); D21H 17/69 (2006.01); D21H 17/68 (2006.01); D21H 19/40 (2006.01); C01F 11/18 (2006.01); C09C 1/40 (2006.01); C09C 1/02 (2006.01); D21H 19/38 (2006.01); C09C 1/00 (2006.01); D21H 17/21 (2006.01);
U.S. Cl.
CPC ...
D21H 17/69 (2013.01); C01F 11/185 (2013.01); C09C 1/00 (2013.01); C09C 1/021 (2013.01); C09C 1/402 (2013.01); C09C 1/405 (2013.01); D21H 17/21 (2013.01); D21H 17/675 (2013.01); D21H 17/68 (2013.01); D21H 19/385 (2013.01); D21H 19/40 (2013.01); C01P 2004/22 (2013.01); C01P 2004/52 (2013.01); C01P 2004/64 (2013.01); C01P 2006/22 (2013.01);
Abstract
The present invention concerns a process for the preparation of flocculated filler particles, wherein at least two aqueous suspensions of at least one filler material and at least one flocculating additive are combined.