Bio-based Adhesive Composition Based on Lignin
AssigneeGeorg-August-Universität Göttingen Stiftung Öffentlichen Rechts
InventorsSandip Singh, Kai Zhang
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Abstract
The present invention relates to an adhesive composition based on a lignin structure, wherein the lignin structure is a lignin functionalised by reaction with dimethylformamide and acrylic acid.
Claims12
A bio-based adhesive composition comprising a lignin structure, wherein the lignin structure is a lignin functionalized by reaction with dimethylformamide and acrylic acid.
A method for producing an adhesive composition, wherein the method comprises the following steps:
- a) providing lignin;
- b) carrying out a reaction of the lignin with dimethylformamide in a basic medium;
- c) carrying out a reaction of the reaction solution obtained in method step b) with acrylic acid;
- d) optionally at least partially drying the reaction product obtained;
- and
- e) optionally washing the reaction product.
A method of using lignin functionalized with acrylic acid and dimethylformamide as an adhesive, in particular for paper, plastics, glass, wood and metals.
Dependencies are inferred from the claim text.