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. 05, 2020
Filed:
Sep. 19, 2017
Applicant:
Mercer International Inc., Vancouver, CA;
Inventor:
Tobias Ziegenbein, Vancouver, CA;
Assignee:
Mercer International, Inc., Vancouver, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H 27/00 (2006.01); D21H 21/20 (2006.01); D21H 17/44 (2006.01); D21H 27/30 (2006.01); D21H 11/08 (2006.01); D21H 11/18 (2006.01); D21H 15/02 (2006.01); D21F 11/14 (2006.01); D21H 11/02 (2006.01); B32B 29/00 (2006.01);
U.S. Cl.
CPC ...
D21H 27/30 (2013.01); B32B 29/005 (2013.01); D21F 11/14 (2013.01); D21H 11/02 (2013.01); D21H 11/08 (2013.01); D21H 11/18 (2013.01); D21H 15/02 (2013.01); D21H 17/44 (2013.01); D21H 21/20 (2013.01); D21H 27/002 (2013.01); D21H 27/005 (2013.01); B32B 2250/02 (2013.01); B32B 2307/54 (2013.01); B32B 2317/12 (2013.01); B32B 2554/00 (2013.01);
Abstract
An absorbent towel paper web is disclosed. The absorbent towel paper web has from 20% to 90% of a soft wood pulp fiber mixture having from 18.5% to 88.5% of soft wood pulp fiber, wherein the soft wood pulp fiber is optionally refined; from 0.25% to 5.0% of cationic strengthening polymer, from 10% to 60% of a hard wood pulp fiber mixture; and not more than 10% moisture. The absorbent towel paper web has a Mean Square Dry Tensile Strength index ranging from 6 N·m/g to 12 N·m/g and a Wet Tensile Strength to Dry Tensile Strength Ratio value ranging from 0.295 to 0.35.