Back to results
US 2026/0226333 A1Published application
Bonding resin
AssigneeStora Enso OYJ
InventorsAshar Zafar, Dimitri Areskogh, Huynh Tram Anh Pham
Life of this patent
Estimating the term…
Abstract
The present invention relates to a bonding resin useful for example in the manufacture of insulation, such as mineral wool insulation or glass wool insulation. The invention also relates to a method for preparing the bonding resin and to the use thereof.
Claims13
A bonding resin comprising:
- a reaction product of
- hydroxymethylfurfural, furfural, furfuryl alcohol, acetoxymethyl furfural or an oligomer of hydroxymethylfurfural or a combination thereof,
- lignin, tannin, or both, and
- a polyamine,
- wherein the polyamine is a primary polyamine selected from a group consisting of:
- a diamine, triamine, tetraamine and pentaamine, and
- wherein the polyamine is H2N-Q-NH2,
- wherein Q is C1-C10 alkyl, cycloalkyl, C1-C10 heteroalkyl, or cycloheteroalkyl, each of which is optionally substituted,
- wherein the lignin, the tannin or both are provided as a solution,
- wherein a total amount of the lignin and the tannin in the bonding resin, calculated on a basis of dry lignin and dry tannin and dry bonding resin, is in a range of from 1 wt-% to 80 wt-%.
7 more elements
A process for preparing a bonding resin, comprising the steps of:
- mixing hydroxymethylfurfural, furfural, furfuryl alcohol, acetoxymethyl furfural or an oligomer of hydroxymethylfurfural or a combination thereof, with lignin, or tannin, or both, and with a polyamine,
- wherein the polyamine is a primary polyamine selected from a group consisting of:
- a diamine, triamine, tetraamine and pentaamine,
- wherein the polyamine is H2N-Q-NH2,
- wherein Q is C1-C10 alkyl, cycloalkyl, C1-C10 heteroalkyl, or cycloheteroalkyl, each of which is optionally substituted,
- wherein the lignin, the tannin, or both are provided as a solution, and
- wherein a total amount of lignin in the bonding resin, calculated on a basis of dry lignin and dry tannin and dry bonding resin, is in a range of from 1 wt-% to 50 wt-%, and,
- wherein components for the bonding resin are mixed and combined less than 1 hour before being cured to form the bonding resin.
5 more elements
Dependencies are inferred from the claim text.