Aqueous tannin nanoparticle dispersions, their preparation and uses thereof

Petri Widsten

Aqueous tannin nanoparticle dispersions, their preparation and uses thereof

Petri Widsten (Inventor)

BA5404 Lignin and sidestream valorization

Research output: Patent › Patent

Abstract

The present invention relates to novel aqueous tannin nanoparticle dispersions, to a method for their preparation and to the use of the aqueous tannin nanoparticle dispersions, particularly in tannin nanoparticle coatings. Tannin nanoparticles (TNPs) are prepared by dissolution of water-insoluble tannins in an organic solvent or a mixture of organic solvent and water, followed by nanoprecipitation or solvent-exchange to obtain the tannin nanoparticle dispersions.

Patent family as of 16.7.2026
CA3266707 AA, CL2025000865 A1, EP4594395 A1, FI131254 B, FI20225836 A, US2026013497 AA, WO24069048 A1

Original language	English
Patent number	FI131254 B1
IPC	A01P1/00
Priority date	27/09/22
Filing date	27/09/22
Publication status	Published - 9 Jan 2025
MoE publication type	H1 Granted patent

Cite this

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PY - 2025/1/9

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N2 - The present invention relates to novel aqueous tannin nanoparticle dispersions, to a method for their preparation and to the use of the aqueous tannin nanoparticle dispersions, particularly in tannin nanoparticle coatings. Tannin nanoparticles (TNPs) are prepared by dissolution of water-insoluble tannins in an organic solvent or a mixture of organic solvent and water, followed by nanoprecipitation or solvent-exchange to obtain the tannin nanoparticle dispersions. Patent family as of 16.7.2026 CA3266707 AA, CL2025000865 A1, EP4594395 A1, FI131254 B, FI20225836 A, US2026013497 AA, WO24069048 A1

AB - The present invention relates to novel aqueous tannin nanoparticle dispersions, to a method for their preparation and to the use of the aqueous tannin nanoparticle dispersions, particularly in tannin nanoparticle coatings. Tannin nanoparticles (TNPs) are prepared by dissolution of water-insoluble tannins in an organic solvent or a mixture of organic solvent and water, followed by nanoprecipitation or solvent-exchange to obtain the tannin nanoparticle dispersions. Patent family as of 16.7.2026 CA3266707 AA, CL2025000865 A1, EP4594395 A1, FI131254 B, FI20225836 A, US2026013497 AA, WO24069048 A1

UR - https://fi.espacenet.com/publicationDetails/biblio?II=0&ND=3&adjacent=true&locale=fi_FI&FT=D&date=20240328&CC=FI&NR=20225836A1&KC=A1

M3 - Patent

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ER -

Aqueous tannin nanoparticle dispersions, their preparation and uses thereof

Abstract

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