ES352676A1 - Un procedimiento para la polimerizacion de suspension de una o mas betapropiolactonas. - Google Patents

Un procedimiento para la polimerizacion de suspension de una o mas betapropiolactonas.

Info

Publication number
ES352676A1
ES352676A1 ES352676A ES352676A ES352676A1 ES 352676 A1 ES352676 A1 ES 352676A1 ES 352676 A ES352676 A ES 352676A ES 352676 A ES352676 A ES 352676A ES 352676 A1 ES352676 A1 ES 352676A1
Authority
ES
Spain
Prior art keywords
pivalolactone
betaine
salts
iodides
carboxyethyl
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.)
Expired
Application number
ES352676A
Other languages
English (en)
Spanish (es)
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 INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
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
Priority claimed from GB1719667A external-priority patent/GB1133293A/en
Application filed by SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Publication of ES352676A1 publication Critical patent/ES352676A1/es
Expired 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

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)
  • Polymerization Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES352676A 1967-04-14 1968-04-11 Un procedimiento para la polimerizacion de suspension de una o mas betapropiolactonas. Expired ES352676A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1719667A GB1133293A (en) 1967-04-14 1967-04-14 Process for the manufacture of lactone prepolymers
GB1719767A GB1133294A (en) 1967-04-14 1967-04-14 Polymerisation of pivalolactone

Publications (1)

Publication Number Publication Date
ES352676A1 true ES352676A1 (es) 1969-07-16

Family

ID=26252532

Family Applications (1)

Application Number Title Priority Date Filing Date
ES352676A Expired ES352676A1 (es) 1967-04-14 1968-04-11 Un procedimiento para la polimerizacion de suspension de una o mas betapropiolactonas.

Country Status (9)

Country Link
AT (1) AT290842B (enExample)
BE (1) BE713537A (enExample)
CH (1) CH511261A (enExample)
DE (1) DE1795608A1 (enExample)
ES (1) ES352676A1 (enExample)
FR (1) FR1563332A (enExample)
GB (1) GB1133294A (enExample)
NL (2) NL6805166A (enExample)
SE (1) SE333639B (enExample)

Also Published As

Publication number Publication date
SE333639B (enExample) 1971-03-22
DE1770193B2 (de) 1972-08-31
GB1133294A (en) 1968-11-13
CH511261A (de) 1971-08-15
DE1770193A1 (de) 1969-10-16
BE713537A (enExample) 1968-10-11
NL6805166A (enExample) 1968-10-15
AT290842B (de) 1971-06-25
NL137350C (enExample)
DE1795608A1 (de) 1972-03-09
FR1563332A (enExample) 1969-04-11

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