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:
Nov. 17, 2015
Filed:
Mar. 08, 2012
Applicant:
Ian Graveson, Nuneaton, GB;
Inventor:
Ian Graveson, Nuneaton, GB;
Assignee:
SAPPI Netherlands Services B.V., Maastricht, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 1/00 (2006.01); D01F 2/24 (2006.01); D01D 1/02 (2006.01); D01D 5/40 (2006.01); D01F 6/00 (2006.01); D01F 2/00 (2006.01); D21H 13/02 (2006.01); D21H 15/00 (2006.01);
U.S. Cl.
CPC ...
D01F 6/00 (2013.01); D01D 1/02 (2013.01); D01D 5/40 (2013.01); D01F 1/00 (2013.01); D01F 2/00 (2013.01); D01F 2/24 (2013.01); D21H 13/02 (2013.01); D21H 15/00 (2013.01);
Abstract
The present invention is directed towards a method for spinning anionically modified cellulose comprising the steps of: (a) preparing a suspension of the anionically modified cellulose in a continuous phase; (b) subjecting the suspension to high shear rate; (c) performing spinning by extruding the cellulose suspension through a spinneret into a spinbath comprising a cationic complexing agent, and (d) isolating the sun fibers from the spin bath; as well as fibers obtained based on the method of the invention and paper or board products derived from such fibers.