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US 12,747,303 B2Granted
Efficient green process for the preparation of nanocelluloses, novel modified nanocelluloses and their application
AssigneeMax-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.
InventorsMarkus Antonietti, Svitlana Filonenko, Esther Elisabeth Jaekel
Life of this patent
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Abstract
The present disclosure relates to an efficient process for the preparation of nanocelluloses using mixtures of ammonium formate and at least one acid as reactant and solvent as well as to novel modified nanocelluloses and their applications.
Claims20
A process for the preparation of nanocellulose comprising at least the steps of
- a) providing a mixture comprising i) ammonium formate ii) at least one acid and iii) at least one cellulose containing feedstock
- b) heating the mixture provided in step a) at a reaction temperature of 100° C. or more.
Nanocellulose comprising at least some cellulose polymers comprising repeating units of formula (I)
- and terminal units of formula (II)
Dependencies are inferred from the claim text.