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:
Jun. 22, 2004
Filed:
Aug. 27, 2002
Applicant:
Inventors:
Richard A. Jewell, Bellevue, WA (US);
John A. Westland, Auburn, WA (US);
Assignee:
Weyerhaeuser Company, Federal Way, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
D01F 2/00 ; D21H 1/120 ;
U.S. Cl.
CPC ...
D01F 2/00 ; D21H 1/120 ;
Abstract
The present invention provides cellulosic fibers having high wet bulk and methods for their preparation. In one embodiment, the invention provides cellulosic fibers catalytically crosslinked with glyoxal and, optionally, a glycol. In another embodiment, cellulosic fibers are crosslinked with a combination of glyoxal and a glyoxal-derived resin selected from the group consisting of a glyoxal/polyol condensate, a cyclic urea/glyoxal/polyol condensate, a cyclic urea/glyoxal condensate, and mixtures thereof.