DE1770451A1 - Verfahren zur Herstellung von Polyestern - Google Patents

Verfahren zur Herstellung von Polyestern

Info

Publication number
DE1770451A1
DE1770451A1 DE19681770451 DE1770451A DE1770451A1 DE 1770451 A1 DE1770451 A1 DE 1770451A1 DE 19681770451 DE19681770451 DE 19681770451 DE 1770451 A DE1770451 A DE 1770451A DE 1770451 A1 DE1770451 A1 DE 1770451A1
Authority
DE
Germany
Prior art keywords
polyester
acid
catalyst
hours
molecular weight
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
DE19681770451
Other languages
German (de)
English (en)
Inventor
Izzard David Charles
Jenkins Victor Frederick
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.)
Evonik LCL Ltd
Original Assignee
Laporte Chemicals Ltd
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 Laporte Chemicals Ltd filed Critical Laporte Chemicals Ltd
Publication of DE1770451A1 publication Critical patent/DE1770451A1/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes
    • C08G63/82Preparation processes characterised by the catalyst used
    • C08G63/823Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4266Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
    • C08G18/4269Lactones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polyurethanes Or Polyureas (AREA)
DE19681770451 1967-05-17 1968-05-17 Verfahren zur Herstellung von Polyestern Pending DE1770451A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2281567 1967-05-17

Publications (1)

Publication Number Publication Date
DE1770451A1 true DE1770451A1 (de) 1972-01-27

Family

ID=10185496

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681770451 Pending DE1770451A1 (de) 1967-05-17 1968-05-17 Verfahren zur Herstellung von Polyestern

Country Status (5)

Country Link
BE (1) BE715397A (en:Method)
DE (1) DE1770451A1 (en:Method)
FR (1) FR1590597A (en:Method)
GB (1) GB1201909A (en:Method)
NL (1) NL6807022A (en:Method)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185313A (en) * 1981-05-08 1982-11-15 Daicel Chem Ind Ltd Polyurethane and its preparation
DE3207062C2 (de) * 1981-02-27 1997-06-05 Daicel Chem Lactonpolymer und Verfahren zu dessen Herstellung
JPS57155230A (en) 1981-02-27 1982-09-25 Daicel Chem Ind Ltd Lactone polymer having narrow molecular weight distribution and its preparation
FR2912751B1 (fr) * 2007-02-16 2012-07-13 Arkema France Procede de preparation de polylactones et polylactames
EP3670569A1 (de) 2018-12-21 2020-06-24 Covestro Deutschland AG Verfahren zur herstellung eines polyesters
EP3670568A1 (de) 2018-12-21 2020-06-24 Covestro Deutschland AG Verfahren zur herstellung eines polyesters
EP3670571A1 (de) 2018-12-21 2020-06-24 Covestro Deutschland AG Verfahren zur herstellung eines polyester-polyetherpolyol-blockcopolymers
EP3670557A1 (de) 2018-12-21 2020-06-24 Covestro Deutschland AG Verfahren zur herstellung eines polyoxyalkylenpolyesterpolyols

Also Published As

Publication number Publication date
NL6807022A (en:Method) 1968-11-18
BE715397A (en:Method) 1968-11-18
FR1590597A (en:Method) 1970-04-20
GB1201909A (en) 1970-08-12

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