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:
Mar. 05, 2024
Filed:
Dec. 20, 2019
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Isto Heiskanen, Imatra, FI;
Katja Lyytikäinen, Imatra, FI;
Otto Nylén, Helsinki, FI;
Kaj Backfolk, Lappeenranta, FI;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/18 (2006.01); D21C 9/00 (2006.01); D21H 17/28 (2006.01);
U.S. Cl.
CPC ...
D21C 9/005 (2013.01); D21H 11/18 (2013.01); D21H 17/28 (2013.01);
Abstract
The present invention relates to a method for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with an organic acid or salt thereof. Fibrous materials as such are also provided. The present technology allows improved Water Vapor Transmission Rates (WVTR) for the fibrous material, while operating on an industrial scale.