FR2399835A1 - Procede de preparation de microcapsules contenant un produit pharmaceutique - Google Patents
Procede de preparation de microcapsules contenant un produit pharmaceutiqueInfo
- Publication number
- FR2399835A1 FR2399835A1 FR7823573A FR7823573A FR2399835A1 FR 2399835 A1 FR2399835 A1 FR 2399835A1 FR 7823573 A FR7823573 A FR 7823573A FR 7823573 A FR7823573 A FR 7823573A FR 2399835 A1 FR2399835 A1 FR 2399835A1
- Authority
- FR
- France
- Prior art keywords
- microcapsules containing
- pharmaceutical product
- preparing microcapsules
- polyisobutylene
- phase separation
- 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.)
- Granted
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
-
- 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
- B01J13/08—Simple coacervation, i.e. addition of highly hydrophilic material
-
- 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
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
L'invention a pour objet un procédé de préparation de microcapsules contenant un produit pharmaceutique ou médicament, par séparation de phases liquide-liquide, suivant lequel on utilise, comme agent formateur de paroi, de l'éthylcelluose ayant une teneur pondérale en éthoxy d'environ 48 à 49,5 % et, comme agent inducteur de la separation des phases, du polyisobutylène, lesdits éthyl cellulose et/ou polyisobutylène étant utilisés sous la forme d'un mélange de deux constituants présentant des masses moléculaires moyennes différentes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9674977A JPS5432614A (en) | 1977-08-11 | 1977-08-11 | Preparation of microcapsules containing pharmaceuticals |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2399835A1 true FR2399835A1 (fr) | 1979-03-09 |
FR2399835B1 FR2399835B1 (fr) | 1981-07-10 |
Family
ID=14173315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7823573A Granted FR2399835A1 (fr) | 1977-08-11 | 1978-08-10 | Procede de preparation de microcapsules contenant un produit pharmaceutique |
Country Status (7)
Country | Link |
---|---|
US (1) | US4218333A (fr) |
JP (1) | JPS5432614A (fr) |
CH (1) | CH638398A5 (fr) |
DE (1) | DE2834373C2 (fr) |
FR (1) | FR2399835A1 (fr) |
GB (1) | GB2002318B (fr) |
IT (1) | IT1107850B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2447192A1 (fr) * | 1979-01-25 | 1980-08-22 | Adria Lab Inc | Forme galenique a liberation prolongee d'indoprofene |
FR2468364A1 (fr) * | 1979-10-31 | 1981-05-08 | Tanabe Seiyaku Co | Procede de preparation de microcapsules d'ethylcellulose contenant un compose pharmaceutiquement actif |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56152739A (en) * | 1980-04-25 | 1981-11-26 | Tanabe Seiyaku Co Ltd | Production of microcapsule |
JPS57197214A (en) * | 1981-05-29 | 1982-12-03 | Tanabe Seiyaku Co Ltd | Rapid-releasing microcapsule and its preparation |
JPS5858146A (ja) * | 1981-10-05 | 1983-04-06 | Tanabe Seiyaku Co Ltd | 速放性マイクロカプセル |
JPS5916821A (ja) * | 1982-07-16 | 1984-01-28 | Tanabe Seiyaku Co Ltd | 非凝集性マイクロカプセルの製法 |
CH669506A5 (en) * | 1986-01-13 | 1989-03-31 | Hugo Degen | Oscillating and reclining furniture |
HU201869B (en) * | 1988-12-30 | 1991-01-28 | Egyt Gyogyszervegyeszeti Gyar | Process for producing microcapsules of quick dissolving active component |
JP2017522299A (ja) * | 2014-06-30 | 2017-08-10 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 口腔ケア活性剤のカプセル化 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1419650A1 (de) * | 1960-03-09 | 1969-01-30 | Ncr Co | Verfahren zur Herstellung sehr kleiner,feste Teilchen enthaltender Kapseln |
DE1519848A1 (de) * | 1965-08-18 | 1969-07-10 | Ncr Co | Verfahren zur Herstellung sehr kleiner Polymerkapseln |
FR2084199A5 (fr) * | 1970-03-04 | 1971-12-17 | Bayer Ag | |
FR2206129A1 (fr) * | 1972-07-31 | 1974-06-07 | Merck & Co Inc | |
JPS5255817A (en) * | 1975-10-31 | 1977-05-07 | Sony Corp | Time error difference correction system of video signal reproduction u nit |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB906422A (en) * | 1958-05-02 | 1962-09-19 | Wellcome Found | Improvements in and relating to prolonged acting pharmaceutical preparations |
US3173878A (en) * | 1960-02-26 | 1965-03-16 | Ibm | Process of making microcapsules |
US3155590A (en) * | 1962-08-02 | 1964-11-03 | Ncr Co | Encapsulation process and its product |
US3341416A (en) * | 1963-12-11 | 1967-09-12 | Ncr Co | Encapsulation of aspirin in ethylcellulose and its product |
US3623997A (en) * | 1966-06-06 | 1971-11-30 | Ncr Co | Wall-sealing treatment for minute capsules and minute capsules having walls of sealed polymeric material |
US3557279A (en) * | 1969-06-12 | 1971-01-19 | Merck & Co Inc | Microencapsulation form of an anti-inflammatory drug |
US4123382A (en) * | 1973-05-25 | 1978-10-31 | Merck & Co., Inc. | Method of microencapsulation |
-
1977
- 1977-08-11 JP JP9674977A patent/JPS5432614A/ja active Granted
-
1978
- 1978-07-31 US US05/929,224 patent/US4218333A/en not_active Expired - Lifetime
- 1978-08-03 GB GB7832135A patent/GB2002318B/en not_active Expired
- 1978-08-04 DE DE2834373A patent/DE2834373C2/de not_active Expired
- 1978-08-08 CH CH840978A patent/CH638398A5/de not_active IP Right Cessation
- 1978-08-10 IT IT68892/78A patent/IT1107850B/it active
- 1978-08-10 FR FR7823573A patent/FR2399835A1/fr active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1419650A1 (de) * | 1960-03-09 | 1969-01-30 | Ncr Co | Verfahren zur Herstellung sehr kleiner,feste Teilchen enthaltender Kapseln |
DE1519848A1 (de) * | 1965-08-18 | 1969-07-10 | Ncr Co | Verfahren zur Herstellung sehr kleiner Polymerkapseln |
FR2084199A5 (fr) * | 1970-03-04 | 1971-12-17 | Bayer Ag | |
FR2206129A1 (fr) * | 1972-07-31 | 1974-06-07 | Merck & Co Inc | |
JPS5255817A (en) * | 1975-10-31 | 1977-05-07 | Sony Corp | Time error difference correction system of video signal reproduction u nit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2447192A1 (fr) * | 1979-01-25 | 1980-08-22 | Adria Lab Inc | Forme galenique a liberation prolongee d'indoprofene |
FR2468364A1 (fr) * | 1979-10-31 | 1981-05-08 | Tanabe Seiyaku Co | Procede de preparation de microcapsules d'ethylcellulose contenant un compose pharmaceutiquement actif |
Also Published As
Publication number | Publication date |
---|---|
GB2002318A (en) | 1979-02-21 |
US4218333A (en) | 1980-08-19 |
JPS5432614A (en) | 1979-03-10 |
IT7868892A0 (it) | 1978-08-10 |
CH638398A5 (de) | 1983-09-30 |
DE2834373C2 (de) | 1985-09-26 |
JPS5632294B2 (fr) | 1981-07-27 |
GB2002318B (en) | 1982-02-10 |
IT1107850B (it) | 1985-12-02 |
DE2834373A1 (de) | 1979-02-22 |
FR2399835B1 (fr) | 1981-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |