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:
Jun. 10, 2014
Filed:
Oct. 26, 2010
Applicants:
Isto Heiskanen, Imatra, FI;
Ali Harlin, Kerava, FI;
Kaj Backfolk, Lappeenranta, FI;
Risto Laitinen, Imatra, FI;
Inventors:
Isto Heiskanen, Imatra, FI;
Ali Harlin, Kerava, FI;
Kaj Backfolk, Lappeenranta, FI;
Risto Laitinen, Imatra, FI;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/20 (2006.01); D21H 11/18 (2006.01); D21C 1/08 (2006.01); D21C 5/00 (2006.01); C08B 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the production of microfibrillated cellulose wherein the process comprises the steps of, providing a slurry comprising fibers, adding the slurry to an extruder, treating the slurry in the extruder so that the fibers are defibrillated and microfibrillated cellulose is formed. The invention further relates to a microfibrillated cellulose produced.