GB2043663B - Continuous production of polyethers - Google Patents

Continuous production of polyethers

Info

Publication number
GB2043663B
GB2043663B GB7908682A GB7908682A GB2043663B GB 2043663 B GB2043663 B GB 2043663B GB 7908682 A GB7908682 A GB 7908682A GB 7908682 A GB7908682 A GB 7908682A GB 2043663 B GB2043663 B GB 2043663B
Authority
GB
United Kingdom
Prior art keywords
reaction system
alkylene oxide
polyethers
alcohol
catalyst
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.)
Expired
Application number
GB7908682A
Other versions
GB2043663A (en
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.)
VNII SINTETISCHESKICH SMOL
Original Assignee
VNII SINTETISCHESKICH SMOL
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
Application filed by VNII SINTETISCHESKICH SMOL filed Critical VNII SINTETISCHESKICH SMOL
Priority to GB7908682A priority Critical patent/GB2043663B/en
Publication of GB2043663A publication Critical patent/GB2043663A/en
Application granted granted Critical
Publication of GB2043663B publication Critical patent/GB2043663B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/02—Preparation of ethers from oxiranes
    • C07C41/03—Preparation of ethers from oxiranes by reaction of oxirane rings with hydroxy groups
    • 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
    • C08G65/2696—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 characterised by the process or apparatus used

Landscapes

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

Abstract

Polyethers having a uniform and predictable molecular weight distribution and distribution of functional groups may be obtained by this continuous process with the same success that has been possible using batch processes. The apparatus which is necessary is simple and very little auxiliary equipment is required, also a less rigourous control system is required. An alkylene oxide, a polyhydric alcohol and a catalyst are passed through a reaction system having at least six sections in series. The catalyst is an alkali metal alkoxide which is preferably dissolved in the alcohol before being passed to the reaction system. The molar ratio of alkylene oxide to alcohol in the first section of the reaction system is from 1:1 to 1:5. The product from this reaction system may be reacted with a different alkylene oxide to produce a block copolymer.
GB7908682A 1979-03-12 1979-03-12 Continuous production of polyethers Expired GB2043663B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7908682A GB2043663B (en) 1979-03-12 1979-03-12 Continuous production of polyethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7908682A GB2043663B (en) 1979-03-12 1979-03-12 Continuous production of polyethers

Publications (2)

Publication Number Publication Date
GB2043663A GB2043663A (en) 1980-10-08
GB2043663B true GB2043663B (en) 1983-05-25

Family

ID=10503820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908682A Expired GB2043663B (en) 1979-03-12 1979-03-12 Continuous production of polyethers

Country Status (1)

Country Link
GB (1) GB2043663B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689012A (en) * 1996-07-18 1997-11-18 Arco Chemical Technology, L.P. Continuous preparation of low unsaturation polyoxyalkylene polyether polyols with continuous additon of starter
US6410801B1 (en) * 1999-11-18 2002-06-25 Basf Corporation Continuous process for the production of polyether polyols
US6380367B1 (en) 1999-11-18 2002-04-30 Basf Corporation Continuous process for the production of sucrose based polyether polyols

Also Published As

Publication number Publication date
GB2043663A (en) 1980-10-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee