CS221979B2 - Method of preparation the copolymere - Google Patents

Method of preparation the copolymere Download PDF

Info

Publication number
CS221979B2
CS221979B2 CS806134A CS613480A CS221979B2 CS 221979 B2 CS221979 B2 CS 221979B2 CS 806134 A CS806134 A CS 806134A CS 613480 A CS613480 A CS 613480A CS 221979 B2 CS221979 B2 CS 221979B2
Authority
CS
Czechoslovakia
Prior art keywords
acid
lactic acid
weight
glycolic
ion exchange
Prior art date
Application number
CS806134A
Other languages
Czech (cs)
English (en)
Inventor
Robert Nevin
Original Assignee
Lilly Co Eli
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 Lilly Co Eli filed Critical Lilly Co Eli
Publication of CS221979B2 publication Critical patent/CS221979B2/cs

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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Medicinal Preparation (AREA)
  • Biological Depolymerization Polymers (AREA)
CS806134A 1979-09-12 1980-09-10 Method of preparation the copolymere CS221979B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/075,296 US4273920A (en) 1979-09-12 1979-09-12 Polymerization process and product

Publications (1)

Publication Number Publication Date
CS221979B2 true CS221979B2 (en) 1983-04-29

Family

ID=22124778

Family Applications (1)

Application Number Title Priority Date Filing Date
CS806134A CS221979B2 (en) 1979-09-12 1980-09-10 Method of preparation the copolymere

Country Status (31)

Country Link
US (1) US4273920A (hu)
EP (1) EP0026599B1 (hu)
JP (2) JPS5645920A (hu)
AR (1) AR221173A1 (hu)
AT (1) AT380689B (hu)
AU (1) AU539130B2 (hu)
BE (1) BE885182A (hu)
BG (1) BG41132A3 (hu)
CA (1) CA1185048A (hu)
CH (1) CH648048A5 (hu)
CS (1) CS221979B2 (hu)
DD (1) DD153125A5 (hu)
DE (1) DE3068116D1 (hu)
DK (1) DK155093C (hu)
EG (1) EG14381A (hu)
ES (1) ES8106542A1 (hu)
FI (1) FI66412C (hu)
FR (1) FR2464973A1 (hu)
GB (1) GB2058808B (hu)
GR (1) GR69961B (hu)
GT (1) GT198065361A (hu)
HU (1) HU191807B (hu)
IE (1) IE50236B1 (hu)
IL (1) IL61024A (hu)
IT (1) IT1141040B (hu)
NZ (1) NZ194902A (hu)
PH (1) PH15272A (hu)
PL (1) PL129779B1 (hu)
PT (1) PT71794B (hu)
RO (1) RO80864A (hu)
ZA (1) ZA805629B (hu)

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JP4817321B2 (ja) * 2004-04-28 2011-11-16 学校法人慶應義塾 主鎖にエステル結合を有するポリマーの解重合方法及び解重合生成物から主鎖にエステル結合を有するポリマーを製造する方法
CL2007003658A1 (es) 2006-12-18 2008-05-09 Takeda Pharmaceutical Composicion de liberacion sostenida que comprende un peptido; procedimiento para preparar dicha composicion; agente profilactico o terapeutico para cancer de prostata, hiperplasia prostatica, endometriosis, fibroide uterino, fibroma uterino, pubertad
CN101284883B (zh) * 2008-05-14 2011-02-16 西北大学 聚乳酸-壳聚糖接枝共聚物的制备方法
CN103300120B (zh) * 2013-06-25 2015-04-22 南京工业大学 一种绿色家禽家畜脱毛剂及其制备方法
JP7374081B2 (ja) 2017-08-31 2023-11-06 エボニック コーポレイション 改善された再吸収性ポリマーの精製方法

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Also Published As

Publication number Publication date
CH648048A5 (fr) 1985-02-28
PT71794A (en) 1980-10-01
DE3068116D1 (en) 1984-07-12
BG41132A3 (en) 1987-04-15
GB2058808B (en) 1983-11-16
JPH0445525B2 (hu) 1992-07-27
DD153125A5 (de) 1981-12-23
JPS5645920A (en) 1981-04-25
ES494974A0 (es) 1981-08-16
GR69961B (hu) 1982-07-22
IE50236B1 (en) 1986-03-05
ZA805629B (en) 1982-04-28
IT8024607A0 (it) 1980-09-11
FR2464973A1 (fr) 1981-03-20
PT71794B (en) 1981-07-07
ES8106542A1 (es) 1981-08-16
ATA455380A (de) 1985-11-15
EG14381A (en) 1983-12-31
EP0026599B1 (en) 1984-06-06
EP0026599A1 (en) 1981-04-08
FI66412C (fi) 1984-10-10
FI66412B (fi) 1984-06-29
HU191807B (en) 1987-04-28
IE801902L (en) 1981-03-12
GT198065361A (es) 1982-03-04
DK155093B (da) 1989-02-06
IL61024A (en) 1983-02-23
NZ194902A (en) 1983-05-31
GB2058808A (en) 1981-04-15
PL226653A1 (hu) 1981-10-16
FR2464973B1 (hu) 1983-06-10
AR221173A1 (es) 1980-12-30
AU6216680A (en) 1981-03-19
RO80864A (ro) 1983-02-01
IL61024A0 (en) 1980-11-30
BE885182A (fr) 1981-03-11
DK387380A (da) 1981-03-13
FI802840A (fi) 1981-03-13
PH15272A (en) 1982-11-02
AU539130B2 (en) 1984-09-13
DK155093C (da) 1989-06-19
IT1141040B (it) 1986-10-01
AT380689B (de) 1986-06-25
US4273920A (en) 1981-06-16
JPH0198617A (ja) 1989-04-17
PL129779B1 (en) 1984-06-30
JPH0121166B2 (hu) 1989-04-20
CA1185048A (en) 1985-04-02

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