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:
Jun. 27, 2017
Filed:
Dec. 05, 2012
Applicant:
Upm-kymmene Corporation, Helsinki, FI;
Inventor:
Mauno Miettinen, Lappeenranta, FI;
Assignee:
UPM-Kymmene Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); 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);
U.S. Cl.
CPC ...
C08H 6/00 (2013.01); C08H 8/00 (2013.01); C08L 97/005 (2013.01); D21C 1/04 (2013.01); D21C 3/04 (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 in at least one acid treatment stage; and optimizing process conditions by means of a combination of process parameters comprising retention time, temperature and pH level at the acid treatment stage so that the retention time is over 6 hours during at least one acid treatment stage. Further, the invention relates to corresponding lignin components, a use of the lignin component and a product.