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:
Feb. 08, 2005
Filed:
Jul. 22, 2002
Applicants:
Hans Wallenius, Ljungskile, SE;
Sussan Sandberg, Onsala, SE;
Marek Gorzynski, Düren, DE;
Oliver Struck, Duren, DE;
Inventors:
Hans Wallenius, Ljungskile, SE;
Sussan Sandberg, Onsala, SE;
Marek Gorzynski, Düren, DE;
Oliver Struck, Duren, DE;
Assignee:
Akzo Nobel NV, Arnhem, NL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H021/20 ; D21H017/55 ;
U.S. Cl.
CPC ...
Abstract
Tissue paper having a bulk between 2 and 8 cm/g and containing an amount of a wet strength agent, wherein the tissue paper contains a wet strength agent in the form of a nitrogen-containing polymer having hydrophobic side-chains. Said tissue paper before converting has a relative wet strength value (RWS) of at least 45%.