Cross-linkable xylans and methods of producing the same and their uses
AssigneeCH-Bioforce Oy
InventorsLari Vähäsalo, Sebastian Von Schoultz, Nicholas Lax, Andrey Pranovich
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Abstract
The present invention relates to nanocrystalline xylan containing at least 0.1 free unsaturated groups per anhydroxylose unit, wherein free unsaturated groups are groups which exhibit unsaturated bonds, and which are capable of reacting with other groups, and the particle size of the xylan crystals is about 10 to 250 nm.
Claims21
Nanocrystalline xylan comprising at least 0.1 free unsaturated groups per anhydroxylose unit, wherein the free unsaturated groups are groups which exhibit unsaturated bonds, and which are capable of reacting with other groups, and wherein the particle size of the xylan crystals is about 10 to 250 nm.
A method of modifying xylan comprising the steps of:
- providing xylan having side groups, wherein the xylan having side groups comprises nanocrystalline xylan, having a particle size of the xylan crystals of about 10 to 250 nm;
- removing the side groups of the xylan to produce unsubstituted xylan having free hydroxy groups;
- reacting the unsubstituted xylan with a reactant, which has a first functional group capable of reacting with the free hydroxy groups and a second functional group comprising free double bonds, to produce modified xylan;
- and
- optionally recovering the modified xylan thus obtained.
21-24. (canceled)
Dependencies are inferred from the claim text.