FR1577945A - - Google Patents

Info

Publication number
FR1577945A
FR1577945A FR1577945DA FR1577945A FR 1577945 A FR1577945 A FR 1577945A FR 1577945D A FR1577945D A FR 1577945DA FR 1577945 A FR1577945 A FR 1577945A
Authority
FR
France
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
Other languages
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
Application granted granted Critical
Publication of FR1577945A publication Critical patent/FR1577945A/fr
Expired 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)
FR1577945D 1967-09-11 1968-09-09 Expired FR1577945A (en)

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 (1)

Publication Number Publication Date
FR1577945A true FR1577945A (en) 1969-08-08

Family

ID=10419140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1577945D Expired FR1577945A (en) 1967-09-11 1968-09-09

Country Status (8)

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

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
BE720564A (en) 1969-03-10
AT287307B (en) 1971-01-25
GB1180044A (en) 1970-02-04
NL6812824A (en) 1969-03-13
ES357956A1 (en) 1970-04-01
DE1795306A1 (en) 1972-03-16
DE1795306C3 (en) 1975-02-06
DE1795306B2 (en) 1974-06-20
CH520169A (en) 1972-03-15

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Legal Events

Date Code Title Description
ST Notification of lapse