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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 11926128 B1

PDFFull Text
Date of Patent:
Mar. 12, 2024

Filed:

Jun. 25, 2019

Light weight linerboard for corrugated board

Applicant:

Stora Enso Oyj, Helsinki, FI;

Inventors:

Seppo Lampainen, Lahti, FI;

Frank Peng, Hammarö, SE;

Atso Laakso, Varkaus, FI;

Ari-Pekka Määttänen, Espoo, FI;

Assignee:

Stora Enso OYJ, Helsinki, FI;

Attorney:

Greer, Burns & Crain, Ltd.

Primary Examiner:

Jose A Fortuna

Int. Cl.
CPC ...
B32B 29/08 (2006.01); B32B 7/05 (2019.01); B32B 29/00 (2006.01); D21H 11/02 (2006.01); D21H 11/04 (2006.01); D21H 11/08 (2006.01); D21H 11/10 (2006.01); D21H 11/18 (2006.01); D21H 17/28 (2006.01); D21H 17/42 (2006.01); D21H 17/44 (2006.01); D21H 27/30 (2006.01); D21H 27/40 (2006.01);
U.S. Cl.
CPC ...
B32B 29/08 (2013.01); B32B 7/05 (2019.01); B32B 29/005 (2013.01); D21H 1/02 (2013.01); D21H 11/02 (2013.01); D21H 11/04 (2013.01); D21H 11/08 (2013.01); D21H 11/10 (2013.01); D21H 11/18 (2013.01); D21H 17/28 (2013.01); D21H 17/42 (2013.01); D21H 17/44 (2013.01); D21H 27/40 (2013.01); B32B 2250/26 (2013.01); B32B 2307/546 (2013.01); B32B 2307/718 (2013.01); B32B 2307/72 (2013.01);
Abstract

The invention relates to a lightweight linerboard for corrugated board with good strength properties and which reduces problems with washboarding in the thereof produced corrugated board. The linerboard of the invention comprises at least one ply comprising 20-80 wt % CTMP from wood fibers and 20-80 wt % chemical pulp, all percentages calculated on the total fiber weight of said first ply, wherein the CTMP exhibits a bulk of at least 2.5 cm/g.

Find Patent Forward Citations

Lampainen, Seppo. (2024). Light weight linerboard for corrugated board (U.S. Patent No. 11926128). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11926128

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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