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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 8999491 B1

PDFFull Text
Date of Patent:
Apr. 07, 2015

Filed:

Aug. 22, 2011

Wet-strength corrugated fiberboard

Applicants:

Rainer Blum, Mannheim, DE;

Gabriel Skupin, Speyer, DE;

Hubertus Kröner, Neustadt, DE;

Jurgen Keck, Speyer, DE;

Inventors:

Rainer Blum, Mannheim, DE;

Gabriel Skupin, Speyer, DE;

Hubertus Kröner, Neustadt, DE;

Jurgen Keck, Speyer, DE;

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Drinker Biddle & Reath LLP

Primary Examiner:

Catherine A Simone

Int. Cl.
CPC ...
B32B 3/28 (2006.01); B32B 29/00 (2006.01); B31F 1/28 (2006.01); B32B 27/08 (2006.01); B32B 27/10 (2006.01); B32B 27/36 (2006.01); D21H 27/10 (2006.01); B32B 37/12 (2006.01); B32B 37/15 (2006.01); D21H 19/24 (2006.01); D21H 19/28 (2006.01);
U.S. Cl.
CPC ...
B31F 1/2886 (2013.01); B32B 3/28 (2013.01); B32B 27/08 (2013.01); B32B 27/10 (2013.01); B32B 27/36 (2013.01); B32B 29/005 (2013.01); B32B 37/12 (2013.01); B32B 37/153 (2013.01); B32B 2270/00 (2013.01); B32B 2305/70 (2013.01); B32B 2307/7163 (2013.01); B32B 2317/12 (2013.01); B32B 2317/127 (2013.01); B32B 2398/20 (2013.01); D21H 19/24 (2013.01); D21H 19/28 (2013.01); D21H 27/10 (2013.01);
Abstract

The present invention relates to single face or double faced corrugated fiberboard comprising one or more corrugated plies, wherein at least one of the linerboard plies or corrugated plies is a paper-film assembly comprising: More particularly, the present invention relates to single face or double faced and/or corrugated fiberboard comprising one or more corrugated plies, wherein at least one of the linerboard plies or corrugated plies is a paper-film assembly comprising: The present invention further relates to methods of producing this corrugated fiberboard.

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