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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.:

US 9944425 B1

PDFFull Text
Date of Patent:
Apr. 17, 2018

Filed:

Oct. 09, 2012

Packaging board, its use and products made thereof

Applicant:

Stora Enso Oyj, Helsinki, FI;

Inventors:

Jari Räsänen, Imatra, FI;

Isto Heiskanen, Imatra, FI;

Risto Laitinen, Imatra, FI;

Assignee:

STORA ENSO OYJ, Helsinki, FI;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Walter B Aughenbaugh

Int. Cl.
CPC ...
B65D 1/26 (2006.01); B32B 1/02 (2006.01); B65D 1/44 (2006.01); B65D 1/22 (2006.01); B32B 29/00 (2006.01); B32B 29/08 (2006.01); B32B 23/06 (2006.01); B32B 29/06 (2006.01); D21H 27/10 (2006.01); D21H 17/14 (2006.01); D21H 17/17 (2006.01); D21H 17/55 (2006.01); D21H 17/56 (2006.01); D21H 17/66 (2006.01); D21H 17/00 (2006.01); D21H 19/82 (2006.01); D21H 19/84 (2006.01); D21H 21/16 (2006.01); D21H 21/20 (2006.01); B65D 1/28 (2006.01); D21H 17/15 (2006.01); D21H 19/76 (2006.01); D21H 17/62 (2006.01); D21H 19/22 (2006.01); D21H 19/28 (2006.01);
U.S. Cl.
CPC ...
B65D 1/265 (2013.01); B32B 1/02 (2013.01); B32B 23/06 (2013.01); B32B 29/00 (2013.01); B32B 29/002 (2013.01); B32B 29/06 (2013.01); B32B 29/08 (2013.01); B65D 1/22 (2013.01); B65D 1/26 (2013.01); B65D 1/28 (2013.01); B65D 1/44 (2013.01); D21H 17/14 (2013.01); D21H 17/15 (2013.01); D21H 17/17 (2013.01); D21H 17/55 (2013.01); D21H 17/56 (2013.01); D21H 17/66 (2013.01); D21H 17/74 (2013.01); D21H 19/76 (2013.01); D21H 19/824 (2013.01); D21H 19/84 (2013.01); D21H 21/16 (2013.01); D21H 21/20 (2013.01); D21H 27/10 (2013.01); D21H 17/62 (2013.01); D21H 19/22 (2013.01); D21H 19/28 (2013.01); Y10T 428/1303 (2015.01); Y10T 428/277 (2015.01); Y10T 428/3179 (2015.04); Y10T 428/31783 (2015.04); Y10T 428/31786 (2015.04); Y10T 428/31895 (2015.04); Y10T 428/31902 (2015.04); Y10T 428/31993 (2015.04);
Abstract

The invention relates to a packaging board comprising a fibrous base and one or more polymer coating layers on one or both sides of the fibrous base. According to the invention the fibrous base contains the combination of an alkyl ketene dimer size, stearic acid anhydride, a wet-strength size and an aluminium compound, which give the board resistance to aggressive liquids as well as thermal treatment, particularly an improved resistance to raw edge penetration in such circumstances. The invention further relates to containers and packages made of the board, for instance disposable drinking cups, dairy product cartons and auto-clave packages, as well as use of the board for such purposes.

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