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. 03, 2015
Filed:
May. 03, 2005
Applicants:
Michel Petit-conil, Grenoble, FR;
J. Mark A. Hoddenbagh, Ontario, CA;
Jeffrey S. Tolan, Ontario, CA;
Inventors:
Michel Petit-Conil, Grenoble, FR;
J. Mark A. Hoddenbagh, Ontario, CA;
Jeffrey S. Tolan, Ontario, CA;
Assignee:
Centre Technique de l'Industrie des Papiers, Cartons et Celluloses, Saint-Martin d'Heres, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 5/00 (2006.01); D21B 1/02 (2006.01); D21C 3/00 (2006.01);
U.S. Cl.
CPC ...
D21B 1/021 (2013.01); D21C 5/005 (2013.01); D21C 3/00 (2013.01);
Abstract
A method of producing hardwood pulp is provided. This method comprises treating hardwood chips with one or more than one Family 11 xylanase enzyme in the absence of adding an oxidizing enzyme for about 5 minutes to about 120 minutes, to produce a treated chip mixture. The treated chip mixture is then mechanically refined to produce the hardwood pulp.