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:
Jan. 07, 2020
Filed:
Jun. 27, 2018
Applicant:
Upm-kymmene Corporation, Helsinki, FI;
Inventor:
Mauno Miettinen, Lappeenranta, FI;
Assignee:
UPM-Kymmene Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08H 7/00 (2011.01); D21C 1/04 (2006.01); D21C 3/04 (2006.01); C08H 8/00 (2010.01); C08L 97/00 (2006.01); C07G 1/00 (2011.01); D21C 11/00 (2006.01);
U.S. Cl.
CPC ...
C08H 6/00 (2013.01); C07G 1/00 (2013.01); C08H 8/00 (2013.01); C08L 97/005 (2013.01); D21C 1/04 (2013.01); D21C 3/04 (2013.01); D21C 11/0007 (2013.01); Y10T 428/2982 (2015.01);
Abstract
The invention relates to a method for making a lignin component from lignin material by an acid treatment, the method comprising: forming a lignin component of lignin material by treating the lignin material by means of an acid composition in at least one acid treatment stage, and the lignin component is washed and neutralized by a pH-buffer during a filtration after the acid treatment, and pH in pH-buffer is between 4-10. Further, the invention relates to a corresponding lignin component.