BE833294A - Procede de polymerisation du tetrahydrofuranne - Google Patents

Procede de polymerisation du tetrahydrofuranne

Info

Publication number
BE833294A
BE833294A BE159933A BE159933A BE833294A BE 833294 A BE833294 A BE 833294A BE 159933 A BE159933 A BE 159933A BE 159933 A BE159933 A BE 159933A BE 833294 A BE833294 A BE 833294A
Authority
BE
Belgium
Prior art keywords
polymerization process
tetrahydrofuran polymerization
tetrahydrofuran
polymerization
Prior art date
Application number
BE159933A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE833294A publication Critical patent/BE833294A/xx

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
    • C08G65/30—Post-polymerisation treatment, e.g. recovery, purification, drying
    • 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
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/321—Polymers modified by chemical after-treatment with inorganic compounds
    • C08G65/324—Polymers modified by chemical after-treatment with inorganic compounds containing oxygen
    • 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
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
    • C08G65/332—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof
    • C08G65/3322—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof acyclic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Polyethers (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
BE159933A 1974-09-26 1975-09-11 Procede de polymerisation du tetrahydrofuranne BE833294A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2445961A DE2445961C2 (de) 1974-09-26 1974-09-26 Verfahren zur Polymerisation von Tetrahydrofuran

Publications (1)

Publication Number Publication Date
BE833294A true BE833294A (fr) 1976-03-11

Family

ID=5926790

Family Applications (1)

Application Number Title Priority Date Filing Date
BE159933A BE833294A (fr) 1974-09-26 1975-09-11 Procede de polymerisation du tetrahydrofuranne

Country Status (8)

Country Link
US (1) US4259531A (fa)
BE (1) BE833294A (fa)
CA (1) CA1054636A (fa)
DE (1) DE2445961C2 (fa)
FR (1) FR2286156A1 (fa)
GB (1) GB1512528A (fa)
IT (1) IT1047100B (fa)
NL (1) NL7511378A (fa)

Families Citing this family (16)

* 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
DE2760272C2 (de) * 1976-03-31 1987-04-16 E.I. Du Pont De Nemours And Co., Wilmington, Del. Verfahren zur Herstellung von Poly-(tetramethylenether)-glykol durch Alkoholyse eines Ester-Endgruppen aufweisenden Poly-(tetramethylenether)-glykols
US4189566A (en) * 1978-01-14 1980-02-19 Basf Aktiengesellschaft Polymerization of tetrahydrofuran
US4243799A (en) 1978-01-14 1981-01-06 Basf Aktiengesellschaft Polymerization of tetrahydrofuran
DE3004328A1 (de) * 1980-02-06 1981-08-13 Bayer Ag, 5090 Leverkusen Polytetrahydrofurane mit acrylat- oder methacrylatendgruppen
US4393199A (en) 1981-05-12 1983-07-12 S R I International Cationic polymerization
US4510333A (en) * 1984-06-05 1985-04-09 E. I. Du Pont De Nemours And Company Method for preparing poly(tetramethylene ether) glycol having narrow molecular weight distribution
US5149862A (en) * 1991-02-26 1992-09-22 E. I. Du Pont De Nemours And Company Preparation of polytetramethylene ether glycol using an acidic zirconia catalyst
DE4108046A1 (de) * 1991-03-13 1992-09-17 Basf Ag Verfahren zur herstellung von polyoxyalkylenglykol-monoestern von monocarbonsaeuren
US5130470A (en) * 1991-03-27 1992-07-14 E. I. Du Pont De Nemours And Company Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic acid/maleic anhydride mixture as molecular weight control agent
DE4325023A1 (de) * 1993-07-26 1995-02-02 Basf Ag Verfahren zur Herstellung von Polytetrahydrofuran oder Tetrahydrofuran-Alkylenoxid-Copolymeren
DE19755415A1 (de) * 1997-12-12 1999-06-17 Basf Ag Katalysator und Verfahren zur Herstellung von Polytetrahydrofuran
JP3659042B2 (ja) * 1999-01-14 2005-06-15 三菱化学株式会社 ポリアルキレンエーテルグリコールの製造方法
KR100709018B1 (ko) * 2000-02-17 2007-04-18 다이셀 화학 공업 주식회사 무수초산, 조제 무수초산의 정제법 및 무수초산을 이용한폴리옥시테트라메틸렌글리콜의 제조법
US6821193B2 (en) * 2002-03-27 2004-11-23 Roger Kaye Material positioning and shaping system apparatus
US20230302463A1 (en) 2020-08-12 2023-09-28 Basf Se Frothing agent for flotation of ores

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR898269A (fr) * 1939-08-18 1945-04-18 Ig Farbenindustrie Ag Procédé d'obtention de produits de polymérisation du tétrahydrofurane
US2499725A (en) * 1948-02-06 1950-03-07 Du Pont Process for making esters of monocarboxylic acids
US2691038A (en) * 1953-04-09 1954-10-05 Du Pont Polymers of tetrahydrofuran
BE733916A (fa) * 1969-05-30 1969-12-01
JPS4928918B1 (fa) * 1970-09-16 1974-07-30

Also Published As

Publication number Publication date
IT1047100B (it) 1980-09-10
DE2445961A1 (de) 1976-04-08
NL7511378A (nl) 1976-03-30
FR2286156B1 (fa) 1978-09-22
DE2445961C2 (de) 1983-12-01
GB1512528A (en) 1978-06-01
FR2286156A1 (fr) 1976-04-23
CA1054636A (en) 1979-05-15
US4259531A (en) 1981-03-31

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BASF A.G.

Effective date: 19850930