DE266603T1 - Herstellung von kopolyanhydriden. - Google Patents

Herstellung von kopolyanhydriden.

Info

Publication number
DE266603T1
DE266603T1 DE198787115172T DE87115172T DE266603T1 DE 266603 T1 DE266603 T1 DE 266603T1 DE 198787115172 T DE198787115172 T DE 198787115172T DE 87115172 T DE87115172 T DE 87115172T DE 266603 T1 DE266603 T1 DE 266603T1
Authority
DE
Germany
Prior art keywords
prepolymers
diacids
individual
copolymers
anhydride
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
DE198787115172T
Other languages
English (en)
Inventor
Abraham J. Patent Att. Keil & Schaa Domb
Robert S. Patent Att. Keil & Schaaf D-6000 Frankfurt Am Main 1 Langer
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.)
Massachusetts Institute of Technology
Original Assignee
Massachusetts Institute of Technology
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25444276&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE266603(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Massachusetts Institute of Technology filed Critical Massachusetts Institute of Technology
Publication of DE266603T1 publication Critical patent/DE266603T1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/2031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers
    • 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
    • C08G67/00—Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing oxygen or oxygen and carbon, not provided for in groups C08G2/00 - C08G65/00
    • C08G67/04—Polyanhydrides

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polyethers (AREA)
  • Materials For Medical Uses (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (6)

02666Ü3 115 172.6 Patentansprüche
1. Verfahren zur Herstellung von hochreinen Anhydridcopolymeren, umfassend:
Auswahl von wenigstens zwei Disäuren, wobei diese Disäuren einzeln synthetisiert und gereinigt sind,
Umsetzen der einzelnen Disäuren und von Essigsäureanhydrid getrennt unter Bildung von Prepolymeren,
getrennte Umkristallisation der durch die Reaktion des Essigsäureanhydrids mit diesen Disäuren gebildeten, einzelnen Prepolymeren,
Kombination dieser einzelnen Prepolymeren in einem spezifischen Verhältnis, und
Polymerisation dieser Prepölymerenmischung unter BiI-dung von Copolymeren.
2. Verfahren nach Anspruch 1, worin die Disäuren aus der aus Sebacinsäure, Bis-(p-carboxyphenoxy)-propan, Bis-(p-carboxyphenoxy)-hexan, Isophthalsäure, 1,4-Phenylendipropionsäure, Adipinsäure und Dodecandicarbonsaure bestehenden Gruppe ausgewählt werden.
3. Hochreines Anhydridcopolymeres, umfassend aus der aus aliphatischen und aromatischen Disäuren bestehenden Gruppe ausgewählten Monomeren, wobei die Copolymere aus einer Mischung eines spezifischen Verhältnisses von Prepolymeren der getrennt mit Essigsäureanhydrid umgesetzten, einzelnen Monomeren polymerisiert sind.
-:.-:.. ·-.-■-.' 02666U3
-2-
1
4. Anhydridcopolymeres nach Anspruch 3, worin diese Prepolymeren durch getrenntes Rückflußkochen einzelner Monomere mit Essigsäureanhydrid unter Bildung von einzelnen Prepolymeren,
5 Entfernen des überschüssigen Essigsäureanhydrids, und ümkristallisation der Prepolymere gebildet sind.
10
5. Anhydridcopolymeres nach Anspruch 3, worin die Copolymere weiterhin durch ümkristallisation gereinigt sind.
6. Anhydridcopolymeres nach Anspruch 3, worin diese Copolymeren aus diesen Prepolymeren in Anwesenheit eines Kata-15 lysators polymerisiert sind.
DE198787115172T 1986-10-17 1987-10-16 Herstellung von kopolyanhydriden. Pending DE266603T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/920,724 US4789724A (en) 1986-10-17 1986-10-17 Preparation of anhydride copolymers

Publications (1)

Publication Number Publication Date
DE266603T1 true DE266603T1 (de) 1989-02-16

Family

ID=25444276

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3752381T Expired - Lifetime DE3752381T2 (de) 1986-10-17 1987-10-16 Herstellung von Kopolyanhydriden
DE198787115172T Pending DE266603T1 (de) 1986-10-17 1987-10-16 Herstellung von kopolyanhydriden.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3752381T Expired - Lifetime DE3752381T2 (de) 1986-10-17 1987-10-16 Herstellung von Kopolyanhydriden

Country Status (7)

Country Link
US (1) US4789724A (de)
EP (2) EP0266603A1 (de)
JP (1) JP2626717B2 (de)
KR (1) KR960006410B1 (de)
AT (1) ATE285432T1 (de)
CA (1) CA1278141C (de)
DE (2) DE3752381T2 (de)

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Also Published As

Publication number Publication date
JP2626717B2 (ja) 1997-07-02
CA1278141C (en) 1990-12-18
EP0266603A1 (de) 1988-05-11
ATE285432T1 (de) 2005-01-15
DE3752381D1 (de) 2005-01-27
EP0692510B1 (de) 2004-12-22
JPS63199227A (ja) 1988-08-17
DE3752381T2 (de) 2005-11-10
KR960006410B1 (ko) 1996-05-15
US4789724A (en) 1988-12-06
EP0692510A1 (de) 1996-01-17
KR890006706A (ko) 1989-06-15

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