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 9416493 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 16, 2016

Filed:

Feb. 12, 2013
Applicant:

Upm-kymmene Corporation, Helsinki, FI;

Inventors:

Kari Hillebrand, Jyskä, FI;

Markus Nuopponen, Helsinki, FI;

Martina Lille, Vantaa, FI;

Juha Tamper, Levänen, FI;

Assignee:

UPM-KYMMENE CORPORATION, Helinski, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/18 (2006.01); D21F 1/66 (2006.01); D21F 5/00 (2006.01); D21F 1/10 (2006.01); D21C 9/18 (2006.01); D21H 25/04 (2006.01); D21H 15/02 (2006.01);
U.S. Cl.
CPC ...
D21H 11/18 (2013.01); D21C 9/18 (2013.01); D21F 1/10 (2013.01); D21F 1/66 (2013.01); D21F 5/00 (2013.01); D21H 15/02 (2013.01); D21H 25/04 (2013.01);
Abstract

The invention relates to a method for processing chemically modified fibril cellulose. The method includes introducing chemically modified fibril cellulose material to a thermal drying device including a belt in such a way that the fibril cellulose material forms at least one bar onto the belt, and dewatering the chemically modified fibril cellulose material on the belt using heated air flow having a temperature of at least 40 ° C. in order to concentrate and/or dry the chemically modified fibril cellulose material in such a way that the dry solids content of the fibril cellulose material after the thermal drying device is at least 10%. In addition, this invention relates to a thermal drying device, a system for processing chemically modified fibril cellulose, a method and a system for redispersing the fibril cellulose, and a fibril cellulose material.


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