DE3886747D1 - Polymere mikrokapseln mit mehreren wänden. - Google Patents

Polymere mikrokapseln mit mehreren wänden.

Info

Publication number
DE3886747D1
DE3886747D1 DE88904141T DE3886747T DE3886747D1 DE 3886747 D1 DE3886747 D1 DE 3886747D1 DE 88904141 T DE88904141 T DE 88904141T DE 3886747 T DE3886747 T DE 3886747T DE 3886747 D1 DE3886747 D1 DE 3886747D1
Authority
DE
Germany
Prior art keywords
polymic
microcapsules
several walls
walls
several
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 - Lifetime
Application number
DE88904141T
Other languages
English (en)
Other versions
DE3886747T2 (de
Inventor
Edith Mathiowitz
Robert 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
Application filed by Massachusetts Institute of Technology filed Critical Massachusetts Institute of Technology
Publication of DE3886747D1 publication Critical patent/DE3886747D1/de
Application granted granted Critical
Publication of DE3886747T2 publication Critical patent/DE3886747T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5089—Processes
    • 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
    • A61K9/1682—Processes
    • A61K9/1694—Processes resulting in granules or microspheres of the matrix type containing more than 5% of excipient
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984—Microcapsule with fluid core [includes liposome]
    • Y10T428/2985—Solid-walled microcapsule from synthetic polymer
    • Y10T428/2987—Addition polymer from unsaturated monomers only
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2989—Microcapsule with solid core [includes liposome]

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fats And Perfumes (AREA)
  • Fertilizers (AREA)
DE88904141T 1987-05-01 1988-04-20 Polymere mikrokapseln mit mehreren wänden. Expired - Lifetime DE3886747T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/045,840 US4861627A (en) 1987-05-01 1987-05-01 Preparation of multiwall polymeric microcapsules
PCT/US1988/001292 WO1988008300A1 (en) 1987-05-01 1988-04-20 Multiwall polymeric microcapsules

Publications (2)

Publication Number Publication Date
DE3886747D1 true DE3886747D1 (de) 1994-02-10
DE3886747T2 DE3886747T2 (de) 1994-05-11

Family

ID=21940161

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88904141T Expired - Lifetime DE3886747T2 (de) 1987-05-01 1988-04-20 Polymere mikrokapseln mit mehreren wänden.

Country Status (6)

Country Link
US (1) US4861627A (de)
EP (1) EP0358677B1 (de)
JP (1) JP2866385B2 (de)
CA (1) CA1336068C (de)
DE (1) DE3886747T2 (de)
WO (1) WO1988008300A1 (de)

Families Citing this family (243)

* Cited by examiner, † Cited by third party
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DE3886747T2 (de) 1994-05-11
US4861627A (en) 1989-08-29
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CA1336068C (en) 1995-06-27
WO1988008300A1 (en) 1988-11-03

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