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:
Aug. 31, 2021
Filed:
Jun. 29, 2016
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Dimitri Areskogh, Stockholm, SE;
Ashar Zafar, Alta, SE;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 7/12 (2006.01); C08G 8/24 (2006.01); C08L 97/00 (2006.01); C08G 8/38 (2006.01); C09J 161/12 (2006.01); B27N 3/00 (2006.01); C09J 197/00 (2006.01); C08K 3/22 (2006.01); C08L 61/12 (2006.01);
U.S. Cl.
CPC ...
C08J 7/12 (2013.01); B27N 3/002 (2013.01); C08G 8/24 (2013.01); C08G 8/38 (2013.01); C08K 3/22 (2013.01); C08L 97/005 (2013.01); C09J 161/12 (2013.01); C09J 197/005 (2013.01); C08J 2397/00 (2013.01); C08K 2003/2206 (2013.01); C08K 2003/2224 (2013.01); C08L 61/12 (2013.01);
Abstract
The present invention relates to a method for increasing the reactivity of lignin which method comprises the following steps; providing a mixture comprising lignin and an alkali solution wherein the concentration of the alkali solution of the mixture is between 5-50% by weight, storing said mixture for a period of at least 1 day whereby the reactivity of the lignin is increased. The present invention also relates to a resin composition comprising said lignin and use of said resin composition.