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ES8707424A1 - Un procedimiento para encapsular un compuesto organico cuya solubilidad es mayor en un primer disolvente que en un se- gundo disolvente - Google Patents

Un procedimiento para encapsular un compuesto organico cuya solubilidad es mayor en un primer disolvente que en un se- gundo disolvente

Info

Publication number
ES8707424A1
ES8707424A1 ES550244A ES550244A ES8707424A1 ES 8707424 A1 ES8707424 A1 ES 8707424A1 ES 550244 A ES550244 A ES 550244A ES 550244 A ES550244 A ES 550244A ES 8707424 A1 ES8707424 A1 ES 8707424A1
Authority
ES
Spain
Prior art keywords
solvent
encapsulation
compound
encapsulation material
small particle
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
ES550244A
Other languages
English (en)
Other versions
ES550244A0 (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.)
Ohio State University Research Foundation
Original Assignee
Ohio State University Research Foundation
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 Ohio State University Research Foundation filed Critical Ohio State University Research Foundation
Publication of ES550244A0 publication Critical patent/ES550244A0/es
Publication of ES8707424A1 publication Critical patent/ES8707424A1/es
Expired 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
    • 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
    • A61K9/5073—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 having two or more different coatings optionally including drug-containing subcoatings
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/10—Complex coacervation, i.e. interaction of oppositely charged particles

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Epidemiology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Dental Preparations (AREA)
  • Soft Magnetic Materials (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

PROCEDIMIENTO PARA EL ENCAPSULADO DE UN COMPUESTO ORGANICO CUYA SOLUBILIDAD ES MAYOR EN UN PRIMER DISOLVENTE QUE EN UN SEGUNDO DISOLVENTE.COMPRENDE LAS OPERACIONES DE DISOLVER EL COMPUESTO EN CUESTION EN UN PRIMER DISOLVENTE; EN PREPARAR UNA SOLUCION DE UN MATERIAL DE ENCAPSULACION Y UN ELECTROLITO EN UN SEGUNDO DISOLVENTE, EL CUAL ES MISCIBLE CON EL PRIMER DISOLVENTE Y EN EL QUE EL COMPUESTO QUE HA DE ENCAPSULARSE ES MAS O MENOS INSOLUBLE; EN MEZCLAR LAS SOLUCIONES PROCEDENTES DE LAS OPERACIONES ANTERIORES, MIENTRAS SE AGITA, PARA PRODUCIR LA PRECIPITACION SIMULTANEA DEL COMPUESTO EN FORMA DE PEQUEÑAS PARTICULAS Y LA FORMACION DE UN COACERVATO DEL MATERIAL DE ENCAPSULACION; Y EN GELIFICAR EL MATERIAL DE ENCAPSULACION.DE APLICACION EN LA PREPARACION DE COMPUESTOS FARMACEUTICOS ACTIVOS, ENCAPSULADOS Y FACILMENTE SOLUBLES.
ES550244A 1984-12-21 1985-12-20 Un procedimiento para encapsular un compuesto organico cuya solubilidad es mayor en un primer disolvente que en un se- gundo disolvente Expired ES8707424A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/684,457 US4606940A (en) 1984-12-21 1984-12-21 Small particle formation and encapsulation

Publications (2)

Publication Number Publication Date
ES550244A0 ES550244A0 (es) 1987-08-01
ES8707424A1 true ES8707424A1 (es) 1987-08-01

Family

ID=24748123

Family Applications (1)

Application Number Title Priority Date Filing Date
ES550244A Expired ES8707424A1 (es) 1984-12-21 1985-12-20 Un procedimiento para encapsular un compuesto organico cuya solubilidad es mayor en un primer disolvente que en un se- gundo disolvente

Country Status (18)

Country Link
US (1) US4606940A (es)
EP (1) EP0207134B1 (es)
JP (1) JPH0611395B2 (es)
KR (1) KR930001803B1 (es)
AT (1) ATE109974T1 (es)
AU (1) AU588275B2 (es)
CA (1) CA1239838A (es)
DE (1) DE3587908T2 (es)
DK (1) DK171772B1 (es)
ES (1) ES8707424A1 (es)
FI (1) FI83391C (es)
HU (1) HU204695B (es)
IL (1) IL77184A (es)
MY (1) MY100084A (es)
NO (1) NO173124C (es)
NZ (1) NZ214598A (es)
PH (1) PH21226A (es)
WO (1) WO1986003676A1 (es)

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Also Published As

Publication number Publication date
AU588275B2 (en) 1989-09-14
FI863372A0 (fi) 1986-08-20
CA1239838A (en) 1988-08-02
DK171772B1 (da) 1997-05-20
AU5307586A (en) 1986-07-22
PH21226A (en) 1987-08-21
FI83391C (fi) 1991-07-10
NO863286L (no) 1986-08-14
DK359186D0 (da) 1986-07-29
WO1986003676A1 (en) 1986-07-03
NZ214598A (en) 1989-02-24
IL77184A0 (en) 1986-04-29
ES550244A0 (es) 1987-08-01
ATE109974T1 (de) 1994-09-15
FI863372A (fi) 1986-08-20
NO173124C (no) 1993-11-03
EP0207134A1 (en) 1987-01-07
JPS62501198A (ja) 1987-05-14
NO173124B (no) 1993-07-26
DE3587908T2 (de) 1995-01-05
US4606940A (en) 1986-08-19
FI83391B (fi) 1991-03-28
DE3587908D1 (de) 1994-09-22
HU204695B (en) 1992-02-28
KR930001803B1 (ko) 1993-03-13
EP0207134B1 (en) 1994-08-17
NO863286D0 (no) 1986-08-14
HUT40912A (en) 1987-03-30
KR870700017A (ko) 1987-02-28
DK359186A (da) 1986-07-29
JPH0611395B2 (ja) 1994-02-16
IL77184A (en) 1989-08-15
MY100084A (en) 1989-08-18

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