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:
Oct. 24, 2023
Filed:
Oct. 17, 2018
Method for producing a film having good barrier properties and a film having good barrier properties
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Esa Saukkonen, Lappeenranta, FI;
Isto Heiskanen, Imatra, FI;
Kaj Backfolk, Lappeenranta, FI;
Katja Lyytikäinen, Imatra, FI;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C12N 9/42 (2006.01); C12N 9/24 (2006.01); D21H 11/18 (2006.01); D21H 11/20 (2006.01); D21H 17/00 (2006.01); D21H 17/05 (2006.01); D21H 19/34 (2006.01); D21H 19/52 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C12N 9/248 (2013.01); C12N 9/2437 (2013.01); D21H 11/18 (2013.01); D21H 11/20 (2013.01); D21H 17/005 (2013.01); D21H 17/05 (2013.01); D21H 19/34 (2013.01); D21H 19/52 (2013.01);
Abstract
The present invention relates to a method for manufacturing a film comprising microfibrillated cellulose wherein the method comprises the steps of; providing a suspension comprising a microfibrillated cellulose, adding an enzyme to the suspension, mixing the enzyme with the suspension to form a mixture, applying said mixture to a wire to form a fibrous web and drying said web to form said film. The present invention further relates to a film comprising microfibrillated cellulose having good barrier properties.