DE3567470D1 - Copolymer and method for producing the same - Google Patents

Copolymer and method for producing the same

Info

Publication number
DE3567470D1
DE3567470D1 DE8585304733T DE3567470T DE3567470D1 DE 3567470 D1 DE3567470 D1 DE 3567470D1 DE 8585304733 T DE8585304733 T DE 8585304733T DE 3567470 T DE3567470 T DE 3567470T DE 3567470 D1 DE3567470 D1 DE 3567470D1
Authority
DE
Germany
Prior art keywords
copolymer
producing
same
weight
dispersity
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
DE8585304733T
Other languages
English (en)
Inventor
Motoaki Tanaka
Yasuaki Ogawa
Tsutomu Miyagawa
Toshio Watanabe
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.)
Takeda Pharmaceutical Co Ltd
Fujifilm Wako Pure Chemical Corp
Original Assignee
Wako Pure Chemical Industries Ltd
Takeda Chemical Industries Ltd
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=15266918&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3567470(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP59140356A external-priority patent/JPH0678425B2/ja
Application filed by Wako Pure Chemical Industries Ltd, Takeda Chemical Industries Ltd filed Critical Wako Pure Chemical Industries Ltd
Application granted granted Critical
Publication of DE3567470D1 publication Critical patent/DE3567470D1/de
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
    • 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
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
    • A61K9/1647—Polyesters, e.g. poly(lactide-co-glycolide)
DE8585304733T 1984-07-06 1985-07-03 Copolymer and method for producing the same Expired DE3567470D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59140356A JPH0678425B2 (ja) 1984-07-06 1984-07-06 重合体の新規製造法

Publications (1)

Publication Number Publication Date
DE3567470D1 true DE3567470D1 (en) 1989-02-16

Family

ID=15266918

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8585304734T Expired DE3567471D1 (en) 1984-07-06 1985-07-03 Method for producing a polymer or copolymer of lactic acid and/or glycolic acid
DE8585304733T Expired DE3567470D1 (en) 1984-07-06 1985-07-03 Copolymer and method for producing the same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8585304734T Expired DE3567471D1 (en) 1984-07-06 1985-07-03 Method for producing a polymer or copolymer of lactic acid and/or glycolic acid

Country Status (8)

Country Link
US (2) US4683288A (de)
EP (2) EP0171907B2 (de)
AT (2) ATE39936T1 (de)
BG (1) BG61520B2 (de)
CA (2) CA1236641A (de)
DE (2) DE3567471D1 (de)
HK (1) HK19592A (de)
SG (1) SG108191G (de)

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Also Published As

Publication number Publication date
EP0172636B1 (de) 1989-01-11
DE3567471D1 (en) 1989-02-16
EP0171907B1 (de) 1989-01-11
EP0171907B2 (de) 1994-08-10
EP0172636B2 (de) 1992-11-11
CA1236641A (en) 1988-05-10
US4683288A (en) 1987-07-28
US4677191A (en) 1987-06-30
EP0172636A1 (de) 1986-02-26
SG108191G (en) 1992-06-12
ATE39935T1 (de) 1989-01-15
BG61520B2 (bg) 1997-10-31
ATE39936T1 (de) 1989-01-15
EP0171907A1 (de) 1986-02-19
HK19592A (en) 1992-03-20
CA1256638A (en) 1989-06-27

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