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.

Date of Patent:
Dec. 13, 2022

Filed:

Oct. 26, 2018
Applicant:

Aalto University Foundation SR, Aalto, FI;

Inventors:

Kalle Lintinen, Aalto, FI;

Rahul Prasad Bangalore Ashok, Aalto, FI;

Timo Leskinen, Aalto, FI;

Yao Xiao, Aalto, FI;

Monika Österberg, Aalto, FI;

Mauri Kostiainen, Aalto, FI;

Pekka Oinas, Aalto, FI;

Lauri Rautkari, Aalto, FI;

Akio Yamamoto, Aalto, FI;

Saara Hautamäki, Aalto, FI;

Niko Meri, Aalto, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); B01J 13/00 (2006.01);
U.S. Cl.
CPC ...
C07G 1/00 (2013.01); B01J 13/0021 (2013.01);
Abstract

Method of forming colloidal lignin particles, comprising the step of dissolving lignin in a mixture of organic solvents, feeding of the said solution into water, and forming acolloidal dispersion of lignin. The used solvents are recovered with methods such as distillation and reused in the process. Water is removed from the colloidal dispersion by ultrafiltration and reused in the process. The concentrated colloidal dispersion is dried by spray drying. The invention can be used in applications where the colloidal nature of lignin will afford an advantage over bulk lignin.


Find Patent Forward Citations

Lintinen, Kalle. (2022). Aqueous lignin dispersions and methods of preparing the same (U.S. Patent No. 11524974). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11524974

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