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. 25, 2019
Filed:
Oct. 29, 2015
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Assignee:
Kemira Oyj, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 15/02 (2006.01); C08L 1/02 (2006.01); C08B 15/08 (2006.01);
U.S. Cl.
CPC ...
C08B 15/02 (2013.01); C08B 15/08 (2013.01); C08L 1/02 (2013.01);
Abstract
The invention relates to a method for producing microfibrillated cellulose, where a suspension comprising cellulose derivative in a liquid phase which comprises an organic solvent is provided. The suspension of cellulose derivative is mechanically treated and microfibrillated cellulose is obtained. At least a part of the liquid phase from the microfibrillated cellulose is separated and microfibrillated cellulose with a dry solids content of >30 weight-% is obtained.