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:
Nov. 07, 2017
Filed:
Jun. 24, 2014
Applicant:
Upm-kymmene Corporation, Helsinki, FI;
Inventors:
Assignee:
UPM-KYMMENE CORPORATION, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/18 (2006.01); C08B 15/02 (2006.01); C08B 15/04 (2006.01); C08B 15/08 (2006.01); D21H 11/20 (2006.01); D21H 19/00 (2006.01); D21H 21/18 (2006.01); D21H 23/04 (2006.01); C09D 101/02 (2006.01); C09D 101/04 (2006.01); D21H 19/12 (2006.01); D21H 23/22 (2006.01);
U.S. Cl.
CPC ...
C08B 15/02 (2013.01); C08B 15/04 (2013.01); C08B 15/08 (2013.01); C09D 101/02 (2013.01); C09D 101/04 (2013.01); D21H 11/18 (2013.01); D21H 11/20 (2013.01); D21H 19/00 (2013.01); D21H 19/12 (2013.01); D21H 21/18 (2013.01); D21H 23/04 (2013.01); D21H 23/22 (2013.01);
Abstract
The invention relates to a method for modifying nanofibrillar cellulose composition, comprising—preparing fibrous dispersion of ionically charged nanofibrillar cellulose (NFC), and—applying heat treatment at a temperature of at least 90° C. to the fibrous dispersion until the viscosity of NFC starts to decrease. The viscosity of the heat-treated NFC is reversible by applying shear forces to the NFC.