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:
Oct. 21, 2003
Filed:
Aug. 29, 2001
Applicant:
Inventors:
Werner Franz Wilhelm Lonsky, Appleton, WI (US);
Alberto Ricardo Negri, Appleton, WI (US);
Assignee:
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 1/120 ; D21H 2/502 ;
U.S. Cl.
CPC ...
D21H 1/120 ; D21H 2/502 ;
Abstract
Papermaking fibers are treated with certain hydrolytic enzymes, specifically including cellulases, such as truncated endo-glucanases, which have been freed of their cellulose binding domain, to generate aldehyde groups at or near the surface of the fibers. Paper sheets made from the resulting fibers exhibit improved strength characteristics relative to paper sheets made from untreated fibers.