BE868381A - Procede perfectionne pour la preparation de copolyether-glycols - Google Patents

Procede perfectionne pour la preparation de copolyether-glycols

Info

Publication number
BE868381A
BE868381A BE188791A BE188791A BE868381A BE 868381 A BE868381 A BE 868381A BE 188791 A BE188791 A BE 188791A BE 188791 A BE188791 A BE 188791A BE 868381 A BE868381 A BE 868381A
Authority
BE
Belgium
Prior art keywords
copolyether
glycols
preparation
perfected process
perfected
Prior art date
Application number
BE188791A
Other languages
English (en)
Original Assignee
Du Pont
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 to FR7818402A priority Critical patent/FR2429234A1/fr
Application filed by Du Pont filed Critical Du Pont
Priority to BE188791A priority patent/BE868381A/fr
Publication of BE868381A publication Critical patent/BE868381A/fr

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
    • C08G65/2642—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 catalyst used
    • C08G65/2669—Non-metals or compounds thereof
    • C08G65/2684—Halogens or compounds thereof
    • 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
    • C08G65/04—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 only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran
    • 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
    • C08G65/2642—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 catalyst used
    • C08G65/2669—Non-metals or compounds thereof
    • C08G65/2678—Sulfur or compounds thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Polyethers (AREA)
BE188791A 1978-06-20 1978-06-22 Procede perfectionne pour la preparation de copolyether-glycols BE868381A (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7818402A FR2429234A1 (fr) 1978-06-20 1978-06-20 Procede perfectionne pour la preparation de copolyether-glycols
BE188791A BE868381A (fr) 1978-06-20 1978-06-22 Procede perfectionne pour la preparation de copolyether-glycols

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7818402A FR2429234A1 (fr) 1978-06-20 1978-06-20 Procede perfectionne pour la preparation de copolyether-glycols
BE188791A BE868381A (fr) 1978-06-20 1978-06-22 Procede perfectionne pour la preparation de copolyether-glycols

Publications (1)

Publication Number Publication Date
BE868381A true BE868381A (fr) 1978-12-22

Family

ID=25650862

Family Applications (1)

Application Number Title Priority Date Filing Date
BE188791A BE868381A (fr) 1978-06-20 1978-06-22 Procede perfectionne pour la preparation de copolyether-glycols

Country Status (2)

Country Link
BE (1) BE868381A (fr)
FR (1) FR2429234A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014548A1 (fr) * 1991-02-13 1992-09-03 E.I. Du Pont De Nemours And Company Polymerisation de tetrahydrofurane afin de produire de l'ether glycol de polytetramethylene au moyen d'un catalyseur en resine fluoruree modifiee contenant des groupes d'acides sulfoniques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306058A (en) * 1980-11-19 1981-12-15 E. I. Du Pont De Nemours And Company Method for reducing oligomeric cyclic ether content of a polymerizate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361433A1 (fr) * 1976-03-31 1978-03-10 Du Pont Preparation de poly(tetramethylene ether) glycol a partir d'esters de celui-ci

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014548A1 (fr) * 1991-02-13 1992-09-03 E.I. Du Pont De Nemours And Company Polymerisation de tetrahydrofurane afin de produire de l'ether glycol de polytetramethylene au moyen d'un catalyseur en resine fluoruree modifiee contenant des groupes d'acides sulfoniques

Also Published As

Publication number Publication date
FR2429234B1 (fr) 1984-12-14
FR2429234A1 (fr) 1980-01-18

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: E.I. DU PONT DE NEMOURS AND CY

Effective date: 19930630