DE1795306C3 - - Google Patents

Info

Publication number
DE1795306C3
DE1795306C3 DE1795306A DE1795306A DE1795306C3 DE 1795306 C3 DE1795306 C3 DE 1795306C3 DE 1795306 A DE1795306 A DE 1795306A DE 1795306 A DE1795306 A DE 1795306A DE 1795306 C3 DE1795306 C3 DE 1795306C3
Authority
DE
Germany
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
DE1795306A
Other languages
German (de)
Other versions
DE1795306A1 (de
DE1795306B2 (de
Inventor
Paul Joseph Elexandre Amsterdam Desgurse
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of DE1795306A1 publication Critical patent/DE1795306A1/de
Publication of DE1795306B2 publication Critical patent/DE1795306B2/de
Application granted granted Critical
Publication of DE1795306C3 publication Critical patent/DE1795306C3/de
Granted 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/785—Preparation processes characterised by the apparatus used
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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)
DE1795306A 1967-09-11 1968-09-09 Verfahren zur kontinuierlichen Polymerisation in Masse von alpha, alpha -Dimethyl-beta propiolacton Granted DE1795306B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41319/67A GB1180044A (en) 1967-09-11 1967-09-11 Process for the Polymerization of beta-Lactones.

Publications (3)

Publication Number Publication Date
DE1795306A1 DE1795306A1 (de) 1972-03-16
DE1795306B2 DE1795306B2 (de) 1974-06-20
DE1795306C3 true DE1795306C3 (da) 1975-02-06

Family

ID=10419140

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1795306A Granted DE1795306B2 (de) 1967-09-11 1968-09-09 Verfahren zur kontinuierlichen Polymerisation in Masse von alpha, alpha -Dimethyl-beta propiolacton

Country Status (8)

Country Link
AT (1) AT287307B (da)
BE (1) BE720564A (da)
CH (1) CH520169A (da)
DE (1) DE1795306B2 (da)
ES (1) ES357956A1 (da)
FR (1) FR1577945A (da)
GB (1) GB1180044A (da)
NL (1) NL6812824A (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349046A (en) * 1992-12-01 1994-09-20 Shell Oil Company Polymerization of β-lactones under rim conditions

Also Published As

Publication number Publication date
ES357956A1 (es) 1970-04-01
CH520169A (de) 1972-03-15
AT287307B (de) 1971-01-25
NL6812824A (da) 1969-03-13
FR1577945A (da) 1969-08-08
BE720564A (da) 1969-03-10
DE1795306A1 (de) 1972-03-16
DE1795306B2 (de) 1974-06-20
GB1180044A (en) 1970-02-04

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee