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:
May. 13, 2025
Filed:
Sep. 03, 2020
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Helena Tufvesson, Gävle, SE;
Marianne König, Stockholm, SE;
Gunilla Söderstam, Stockholm, SE;
Antonina Munguia-Chang, Gävle, SE;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 27/00 (2006.01); A61F 13/15 (2006.01); D21C 3/02 (2006.01); D21C 9/00 (2006.01); D21C 9/147 (2006.01); D21H 11/16 (2006.01); D21H 15/04 (2006.01); A61F 13/53 (2006.01);
U.S. Cl.
CPC ...
D21H 27/007 (2013.01); A61F 13/15 (2013.01); D21C 3/02 (2013.01); D21C 9/007 (2013.01); D21C 9/147 (2013.01); D21H 11/16 (2013.01); D21H 15/04 (2013.01); A61F 2013/530007 (2013.01);
Abstract
The present invention is directed to fluff pulp having a Kappa number in the range of from 5 to 18 and having, when in the form of a dry sheet, ISO brightness in the range of from 30 to 60% and having a specific volume in the dry defibrated state of at least 19 dm3/kg and having absorption time in the range of from 2 to 4 seconds.