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1. WO2020109983 - PROCESS FOR PREPARING A SOLUTION OF LIGNIN IN AN AQUEOUS MEDIUM

Publication Number WO/2020/109983
Publication Date 04.06.2020
International Application No. PCT/IB2019/060150
International Filing Date 26.11.2019
IPC
C09J 197/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
197Adhesives based on lignin-containing materials
C07G 1/00 2011.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
GCOMPOUNDS OF UNKNOWN CONSTITUTION
1Low-molecular-weight derivatives of lignin
C08L 97/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
97Compositions of lignin-containing materials
02Lignocellulosic material, e.g. wood, straw or bagasse
C09J 161/06 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
161Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
04Condensation polymers of aldehydes or ketones with phenols only
06of aldehydes with phenols
C09J 197/02 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
197Adhesives based on lignin-containing materials
02Lignocellulosic material, e.g. wood, straw or bagasse
B27N 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
3Manufacture of substantially flat articles, e.g. boards, from particles or fibres
CPC
B27N 3/00
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
3Manufacture of substantially flat articles, e.g. boards, from particles or fibres
C07G 1/00
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
GCOMPOUNDS OF UNKNOWN CONSTITUTION
1Lignin; Lignin derivatives
C08L 61/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
61Compositions of condensation polymers of aldehydes or ketones
04Condensation polymers of aldehydes or ketones with phenols only
06of aldehydes with phenols
C08L 97/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
97Compositions of lignin-containing materials
C08L 97/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
97Compositions of lignin-containing materials
02Lignocellulosic material, e.g. wood, straw or bagasse
C09J 161/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
161Adhesives based on condensation polymers of aldehydes or ketones
04Condensation polymers of aldehydes or ketones with phenols only
06of aldehydes with phenols
Applicants
  • STORA ENSO OYJ [FI]/[FI]
Inventors
  • NASLI BAKIR, Ben
  • ZAFAR, Ashar
  • EKSTRÖM, Jesper
Agents
  • STEINRUD, Henrik
Priority Data
1851470-327.11.2018SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR PREPARING A SOLUTION OF LIGNIN IN AN AQUEOUS MEDIUM
(FR) PROCÉDÉ DE PRÉPARATION D'UNE SOLUTION DE LIGNINE DANS UN MILIEU AQUEUX
Abstract
(EN)
The present invention relates to a process for lignin dissolution in which partial methylolation of lignin is carried out during the step of preparing a solution of lignin in an aqueous medium comprising alkali and phenol. The lignin prepared according to the process of the present invention can be used to manufacture lignin-based phenolic resins, which are particularly useful in the manufacture of laminates.
(FR)
La présente invention concerne un procédé de dissolution de lignine dans lequel une méthylolation partielle de lignine est réalisée au cours de l'étape de préparation d'une solution de lignine dans un milieu aqueux comprenant de l'alcali et du phénol. La lignine préparée selon le procédé de la présente invention peut être utilisée pour fabriquer des résines phénoliques à base de lignine, qui sont particulièrement utiles dans la fabrication de stratifiés.
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