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:
Dec. 31, 2019
Filed:
Oct. 16, 2009
Applicants:
Braz Jose Demuner, Aracruz ES, BR;
Otavio Mambrim Filho, Aracruz ES, BR;
Inventors:
Braz Jose Demuner, Aracruz ES, BR;
Otavio Mambrim Filho, Aracruz ES, BR;
Assignee:
Suzano S.A., Sao Paulo, BR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 9/00 (2006.01); D06M 16/00 (2006.01); D21C 5/00 (2006.01); D06M 101/06 (2006.01); D21H 11/20 (2006.01);
U.S. Cl.
CPC ...
D21C 9/001 (2013.01); D06M 16/003 (2013.01); D21C 5/005 (2013.01); D21C 9/002 (2013.01); D06M 2101/06 (2013.01); D21C 9/004 (2013.01); D21C 9/005 (2013.01); D21H 11/20 (2013.01);
Abstract
The present invention refers to a process for producing cellulose of market eucalyptus fibers having distinct features through the use of at least one enzymatic treatment with hydrolytic enzymes, such as for example, xylanases, cellulases or mixtures thereof, in association to at least one acidic treatment step. These treatments may be applied into different steps of the fibers process producing, wherein all of them happen before drying.