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. 17, 2022
Filed:
Mar. 12, 2018
Applicant:
International Paper Company, Memphis, TN (US);
Inventor:
Peter M. Froass, Cincinnati, OH (US);
Assignee:
INTERNATIONAL PAPER COMPANY, Memphis, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/04 (2006.01); D21C 9/00 (2006.01); D21H 17/66 (2006.01); D21C 9/10 (2006.01); D21C 9/16 (2006.01); D21C 9/14 (2006.01); D21H 11/20 (2006.01); D21C 11/08 (2006.01); D21H 21/32 (2006.01); D21H 21/14 (2006.01); D21H 17/00 (2006.01);
U.S. Cl.
CPC ...
D21H 11/04 (2013.01); D21C 9/00 (2013.01); D21C 9/001 (2013.01); D21C 9/004 (2013.01); D21C 9/1036 (2013.01); D21C 9/14 (2013.01); D21C 9/16 (2013.01); D21C 9/163 (2013.01); D21C 11/08 (2013.01); D21H 11/20 (2013.01); D21H 17/66 (2013.01); D21H 17/73 (2013.01); D21H 21/14 (2013.01); D21H 21/32 (2013.01);
Abstract
The present technology is directed to fluff pulps with improved odor control as well as methods of making such fluff pulps. A fluff pulp is provided that includes a bleached kraft fiber and a copper ion content from about 0.2 ppm to about 50 ppm by weight of the bleached kraft fiber. The bleached kraft fiber includes a length-weighted average fiber length of at least about 2 mm, a copper number of less than about 7, a carboxyl content of more than about 3.5 meq/100 grams; an ISO brightness of at least 80; and a viscosity from about 2 cps to about 9 cps.