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. 04, 2022
Filed:
Dec. 19, 2018
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Kaj Backfolk, Villmanstrand, FI;
Isto Heiskanen, Imatra, FI;
Esa Saukkonen, Lappeenranta, FI;
Jukka Kankkunen, Imatra, FI;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B29C 65/32 (2006.01); B29C 65/36 (2006.01); B32B 27/12 (2006.01); D21H 11/18 (2006.01); D21H 19/22 (2006.01); D21H 19/80 (2006.01); D21H 27/10 (2006.01); B29C 65/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/32 (2013.01); B29C 65/32 (2013.01); B29C 65/368 (2013.01); B29C 65/3656 (2013.01); B29C 66/71 (2013.01); B29C 66/723 (2013.01); B29C 66/7352 (2013.01); B29C 66/73921 (2013.01); B32B 27/12 (2013.01); D21H 11/18 (2013.01); D21H 19/22 (2013.01); D21H 19/80 (2013.01); D21H 27/10 (2013.01); B32B 2307/31 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/746 (2013.01); B32B 2439/00 (2013.01);
Abstract
The present invention is directed to a packaging material free from aluminium in the form of a continuous foil or film, comprising a layer of microfibrillated cellulose (MFC), wherein the layer comprising MFC has been laminated or coated on at least one side with a heat-sealable material. The MFC layer contains at least 60% by weight of microfibrillated cellulose. The present invention is also directed to a method for induction sealing, wherein a packaging material to be heat-sealed by induction is placed against an induction heating surface.