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.

Date of Patent:
May. 17, 2022

Filed:

Jun. 01, 2016
Applicant:

Institut National DE LA Recherche Agronomique—inra, Paris, FR;

Inventors:

Bernard Cathala, La Chapelle sur Erdre, FR;

Ana Villares, Nantes, FR;

Jean-Guy Berrin, Roquevaire, FR;

Celine Moreau, Nantes, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 1/02 (2006.01); D21C 5/00 (2006.01); D21C 9/00 (2006.01); B82Y 40/00 (2011.01); C12P 19/04 (2006.01); D21H 11/18 (2006.01); C08L 1/04 (2006.01); D21H 17/05 (2006.01); D21H 11/04 (2006.01); D21H 11/06 (2006.01); D21H 11/20 (2006.01); D21H 25/00 (2006.01);
U.S. Cl.
CPC ...
C08L 1/02 (2013.01); B82Y 40/00 (2013.01); C08L 1/04 (2013.01); C12P 19/04 (2013.01); D21C 5/005 (2013.01); D21C 9/007 (2013.01); D21H 11/04 (2013.01); D21H 11/06 (2013.01); D21H 11/18 (2013.01); D21H 11/20 (2013.01); D21H 17/05 (2013.01); D21H 25/005 (2013.01);
Abstract

Disclosed is a method for producing nanocelluloses from a cellulose substrate including cellulose fibers, the method including the following sequence of steps: —a step of enzymatic treatment of the cellulose substrate, by bringing same into contact with at least one cleaving enzyme, then—a step of mechanical treatment of the cellulose substrate subjected to the step of enzymatic treatment, in order to delaminate the cellulose fibres and obtain the nanocelluloses. The at least one cleaving enzyme is chosen from the enzymes belonging to the family of lytic polysaccharide monooxygenases (LPMOs) capable of achieving cleavage in the presence of an electron donor. Also disclosed are the nanocelluloses obtained according to the method.


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