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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.:

US 12553187 B1

PDFFull Text
Date of Patent:
Feb. 17, 2026

Filed:

Dec. 18, 2020

Dispersion of cellulose fibers and method of producing the same

Applicant:

Metsä Fibre Oy, Metsä, FI;

Inventors:

Lauri Hauru, Helsingin yliopisto, FI;

Ilkka Kilpeläinen, Helsingin yliopisto, FI;

Olli Suontausta, Metsä, FI;

Alexander Deutschle, Metsä, FI;

Assignee:

Metsä Fibre Oy, Metsä, FI;

Attorney:

Laine IP Oy

Primary Examiner:

Anthony Calandra

Int. Cl.
CPC ...
D21H 21/08 (2006.01); A22C 13/00 (2006.01); D21H 11/02 (2006.01); D21H 17/14 (2006.01); D21H 19/34 (2006.01); D21H 27/06 (2006.01);
U.S. Cl.
CPC ...
D21H 21/08 (2013.01); A22C 13/0013 (2013.01); D21H 11/02 (2013.01); D21H 17/14 (2013.01); D21H 19/34 (2013.01); D21H 27/06 (2013.01);
Abstract

A dispersion of cellulose fibers, a method of preparing the same and uses thereof. The dispersion is produced by providing a cellulose feedstock comprising cellulose fibers; by providing a mixture of an ionic liquid and a protic antisolvent for cellulose as a dispersion medium, the ionic liquid being selected from the group of protic salts of superbases capable of dissolving cellulose; and by mixing said cellulose feedstock into said dispersion medium so as to disperse the cellulose fibers therein to form a dispersion which is stable for at least 24 hours at room temperature. The dispersion can be used as an additive of cellulose pulps for making of fibrous products.

Find Patent Forward Citations

Hauru, Lauri. (2026). Dispersion of cellulose fibers and method of producing the same (U.S. Patent No. 12553187). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12553187

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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