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:
May. 09, 2023
Filed:
May. 29, 2018
Annikki Gmbh, Raaba-Grambach, AT;
Kerstin Wallisch, Vienna, AT;
Simone Knaus, Vienna, AT;
ANNIKKI GMBH, Raaba-Gramach, AT;
Abstract
The present invention relates to a method for the preparation of a lignin prepolymer, comprising (a) providing a lignin; (b) reacting the lignin with a hydroxyl functionalization reagent to provide a lignin derivative containing at least one hydroxyl group, said hydroxyl group being obtained as a result of the interaction between the lignin and the hydroxyl functionalization reagent (c) reacting the lignin derivative obtained in step (b) with a functionalization reagent selected from the group consisting of fatty acids, fatty acid derivatives and mixtures thereof capable to react with the lignin derivative resulting in a covalent bond between the fatty acid and/or or the fatty acid derivative and the lignin derivative.