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:
Apr. 26, 2022
Filed:
Apr. 09, 2020
Max-planck-gesellschaft Zur Förderung Der Wissenschaften E.v., Munich, DE;
Institut Für Biotechnologie Und Wirkstoff-forschung Ggmbh, Kaiserslautern, DE;
Frederik Wurm, Wiesbaden, DE;
Katharina Landfester, Mainz, DE;
Doungporn Yiamsawas, Bangkok, TH;
Eckhard Thines, Mehlingen, DE;
Jochen Fischer, Kaiserslautern, DE;
MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V., Munich, DE;
INSTITUT FÜR BIOTECHNOLOGIE UND WIRKSTOFF-FORSCHUNG GGMBH, Kaiserslautern, DE;
Abstract
The present invention provides lignin nanoparticles containing a hydrophobic active agent and a process for the production of the lignin nanoparticles. The process involves the following steps: (i) dissolving modified lignin and a hydrophobic active agent in an organic solvent having low solubility in water; (ii) combining the solution with water and a surfactant to form a pre-emulsion; (iii) forming an emulsion from the pre-emulsion; and (iv) crosslinking the modified lignin to form the lignin nanoparticles, in which the modified lignin is lignin which is chemically modified to contain at least two functional groups suitable for polymerization and/or crosslinking.