EP4731701A1 - Procédé de préparation d'un polyoxyalkylène polyol - Google Patents

Procédé de préparation d'un polyoxyalkylène polyol

Info

Publication number
EP4731701A1
EP4731701A1 EP24732335.5A EP24732335A EP4731701A1 EP 4731701 A1 EP4731701 A1 EP 4731701A1 EP 24732335 A EP24732335 A EP 24732335A EP 4731701 A1 EP4731701 A1 EP 4731701A1
Authority
EP
European Patent Office
Prior art keywords
process according
alkaline
oxide
alkylene oxide
polyoxyalkylene polyol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24732335.5A
Other languages
German (de)
English (en)
Inventor
Klaus Lorenz
Andreas Hoffmann
Annemarie Meyer
Stefanie Braun
Frank KLEINIG
Vincent Triacca
Jacques Riou
Bernard Bouguen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covestro Deutschland AG
Original Assignee
Covestro Deutschland AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP23181155.5A external-priority patent/EP4480993A1/fr
Application filed by Covestro Deutschland AG filed Critical Covestro Deutschland AG
Publication of EP4731701A1 publication Critical patent/EP4731701A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
    • C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
    • C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyethers (AREA)

Abstract

L'invention concerne un procédé de préparation d'un polyoxyalkylène polyol comprenant la fixation d'un oxyde d'alkylène (A) à une substance de départ à fonction H (B) en présence d'un catalyseur basique (C) avec la formation d'un intermédiaire (D), en faisant suivre par un traitement sous vide de l'intermédiaire (D) à des pressions de 1 mbara à 500 mbara avec la formation d'un intermédiaire (E). Ensuite, un oxyde d'alkylène (F) est fixé à cet intermédiaire (E) avec la formation d'un polyoxyalkylène polyol alcalin (H), puis de l'eau est ajoutée à la formation d'un mélange (J) comprenant une première phase (J-1) contenant le polyoxyalkylène polyol et une seconde phase aqueuse (J-2). Puis la seconde phase aqueuse (J- 2) est séparée de la première phase (J-1) contenant le polyoxyalkylène polyol par gravitation. L'addition de l'oxyde d'alkylène (A) se termine avant le traitement sous vide et l'addition de l'oxyde d'alkylène (F) ne commence qu'après la fin du traitement sous vide.
EP24732335.5A 2023-06-23 2024-06-17 Procédé de préparation d'un polyoxyalkylène polyol Pending EP4731701A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP23181155.5A EP4480993A1 (fr) 2023-06-23 2023-06-23 Procédé de préparation d'un polyoxyalkylène polyol
EP23198874 2023-09-21
PCT/EP2024/066820 WO2024260924A1 (fr) 2023-06-23 2024-06-17 Procédé de préparation d'un polyoxyalkylène polyol

Publications (1)

Publication Number Publication Date
EP4731701A1 true EP4731701A1 (fr) 2026-04-29

Family

ID=91469868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24732335.5A Pending EP4731701A1 (fr) 2023-06-23 2024-06-17 Procédé de préparation d'un polyoxyalkylène polyol

Country Status (3)

Country Link
EP (1) EP4731701A1 (fr)
CN (1) CN121368608A (fr)
WO (1) WO2024260924A1 (fr)

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Also Published As

Publication number Publication date
CN121368608A (zh) 2026-01-20
WO2024260924A1 (fr) 2024-12-26

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