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. 12, 2023
Filed:
May. 04, 2018
Applicant:
Betulium Oy, Espoo, FI;
Inventor:
Nikolaos Pahimanolis, Espoo, FI;
Assignee:
Betulium Oy, Espoo, FI;
Primary Examiner:
Int. Cl.
CPC ...
C08B 5/14 (2006.01); C08B 1/02 (2006.01); C08B 11/00 (2006.01); C08B 1/06 (2006.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
C08B 5/14 (2013.01); C08B 1/02 (2013.01); C08B 1/06 (2013.01); C08B 11/00 (2013.01); B82Y 40/00 (2013.01);
Abstract
The present invention provides a method for derivatizing cellulose pulp at high solids content or even at a fully dry state without pretreating the cellulose, the method comprising preparing a reaction medium comprising urea and at least one derivatization reagent; carrying out a chemical derivatization reaction between the at least one derivatization reagent and the cellulose pulp in a reaction system comprising the cellulose pulp in contact with the reaction medium; and optionally purifying and/or recovering the derivatized cellulose product. The present description also relates to products obtainable using said method.