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. 28, 2019
Filed:
Sep. 30, 2015
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Jan-Erik Nordström, Nacka, SE;
Jari Räsänen, Imatra, FI;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 11/00 (2006.01); A61L 2/08 (2006.01); H01J 37/317 (2006.01); D21F 5/00 (2006.01); D21F 5/02 (2006.01); D21H 27/30 (2006.01);
U.S. Cl.
CPC ...
D21F 11/002 (2013.01); A61L 2/087 (2013.01); D21F 5/002 (2013.01); D21F 5/022 (2013.01); D21H 27/30 (2013.01); H01J 37/317 (2013.01); H01J 2237/316 (2013.01);
Abstract
Method for producing a sterilized foam web, wherein the method comprising the steps of preparing a wet foam (), feeding the wet foam () to a head box (), distributing the wet foam by the head box (), treating the wet foam () with electron beam radiation () to immobilize and sterilize the wet foam (), receiving the electron beam treated foam on a moving wire () to form a foam web (), pressing and the foam web (), and drying the foam web ().