Abstract
A method for preparing an adhesive, said method comprising - mixing chitosan and tannic acid in an aqueous solution, and adjusting the pH value of the resulting mixture to a pH that induces the formation of a polymer-rich phase and a polymer-poor phase, preferably in a pH range of from 4.5 to 6, such as from 5 to 5.5 to obtain a polymer-rich phase and a polymer-poor phase; and - isolating the polymer-rich phase to obtain said adhesive. Described is also an adhesive obtainable from said method and uses thereof.
| Original language | English |
|---|---|
| IPC | C09J 105/ 08 A I |
| Patent number | WO2024033397 |
| Filing date | 09/08/2023 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 10/08/2022 |
| Priority number | EP20220189669 |
| Publication status | Published - 15 Feb 2024 |