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:
Aug. 28, 2018
Filed:
Oct. 24, 2014
Applicant:
Omya International Ag, Oftringen, CH;
Inventors:
Samuel Rentsch, Aarburg, CH;
Matthias Buri, Rothrist, CH;
Fabio Ippolito, Oftringen, CH;
Patrick A. C. Gane, Rothrist, CH;
Assignee:
Omya International AG, Oftringen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C 1/02 (2006.01); C09C 3/04 (2006.01); D21H 17/67 (2006.01); D21H 17/69 (2006.01);
U.S. Cl.
CPC ...
C09C 1/021 (2013.01); C09C 3/041 (2013.01); D21H 17/67 (2013.01); D21H 17/69 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/22 (2013.01);
Abstract
The present invention relates to a process for preparing an aqueous suspension comprising a mineral pigment material and a depolymerized carboxymethylcellulose having a degree of carboxylation in the range from 0.2 to 2.2, a molecular weight in the range from 5000 to 40000 g/mol, and a polydispersity index in the range from 2 to 10.