Biopolymer nanoparticles
AssigneeAto B.V.
InventorsFranciscus Egenius Giezen, Remigius Oene Jules Jongboom, Herman Feil, Kornelis Fester Gotlieb, Arjen Boersma
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Abstract
A process for producing biopolymer nanoparticles is described, in which the biopolymer is plasticised using shear forces, a crosslinking agent being added during the processing. After said processing. After said processing, the biopolymer can be dissolved or dispersed in an aqueous medium to a concentration between 4 and 40 wt. %. This results in starch nanoparticles which are characterized by an average particle size of less than 400 nm.
Claims21
A process for producing bipolymer nanoparticles, in which the biopolymer is plasticised by processing using shear forces, a crosslinking agent being present during the processing, and the biopolymer is dissolved or dispersed in a hydroxylic solvent.
Cross-linked starch nanoparticles which are characterized by an average particle size of less than 400 nm and a ratio of weight-averaged molecular weight to number-averaged molecular weight (Mw/Mn) below 2.
A extrudate of crosslinked polymer containing at least 50% starch, which swells upon immersion in an aqueous medium and forms a low viscous dispersion after immersion.
Dependencies are inferred from the claim text.