ES8207440A1 - Un procedimiento para la preparacion de microcapsulas de e- tilcelulosa - Google Patents

Un procedimiento para la preparacion de microcapsulas de e- tilcelulosa

Info

Publication number
ES8207440A1
ES8207440A1 ES501570A ES501570A ES8207440A1 ES 8207440 A1 ES8207440 A1 ES 8207440A1 ES 501570 A ES501570 A ES 501570A ES 501570 A ES501570 A ES 501570A ES 8207440 A1 ES8207440 A1 ES 8207440A1
Authority
ES
Spain
Prior art keywords
preparing
ethylcellulose microcapsules
microcapsules
ethylcellulose
preparing ethylcellulose
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
ES501570A
Other languages
English (en)
Other versions
ES501570A0 (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.)
Tanabe Seiyaku Co Ltd
Original Assignee
Tanabe Seiyaku Co 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
Application filed by Tanabe Seiyaku Co Ltd filed Critical Tanabe Seiyaku Co Ltd
Publication of ES501570A0 publication Critical patent/ES501570A0/es
Publication of ES8207440A1 publication Critical patent/ES8207440A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • A61K9/5042—Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
    • A61K9/5047—Cellulose ethers containing no ester groups, e.g. hydroxypropyl methylcellulose
    • 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
    • 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]

Abstract

PROCEDIMIENTO PARA PREPARAR MICROCAPSULAS DE ETILCELULOSA. LAS MICROCAPSULAS SE OBTINEEN POR FLOCULACION DE LA ETILCELULOSA REALIZADA EN PRESENCIA DE UN POLIMERO ORGANOSILICICO O EN PRESENCIA DE DICHO POLIMEO ORGANOSILICICO Y UN AGENT TENSOACTIVO. EL PROCEDIMIENTO COMPRENDE LAS SIGUEINTES ETAPAS: A) DISOLVER LA ETILCELULOSA Y UN POLIMERO ORGANOSILICICO EN CICLOHEXANO A 75-80 C; B) DISPERSAR EN LA DISOLUCION PRCEDENTE UN MATERIAL CENTRAL; C) ENFRIAR LA DISPERSION ANTERIOR, A RAZON DE UNOS 0,05-4 C POR MINUTO, CON LO QUE LA ETILCELULOSA SE SEPARA DE LA DISPERSION Y SE DEPOSITA SOBRE LAS PARTICULAS DE MATERIAL CENTRAL FORMANDO LAS MICROCAPSULAS, Y D) RECUPERAR LAS MICROCAPSULAS POR DECANTACION, CENTRIFUGACION O PROCESO SIMILAR.
ES501570A 1980-04-25 1981-04-23 Un procedimiento para la preparacion de microcapsulas de e- tilcelulosa Expired ES8207440A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5580880A JPS56152739A (en) 1980-04-25 1980-04-25 Production of microcapsule

Publications (2)

Publication Number Publication Date
ES501570A0 ES501570A0 (es) 1982-09-16
ES8207440A1 true ES8207440A1 (es) 1982-09-16

Family

ID=13009214

Family Applications (1)

Application Number Title Priority Date Filing Date
ES501570A Expired ES8207440A1 (es) 1980-04-25 1981-04-23 Un procedimiento para la preparacion de microcapsulas de e- tilcelulosa

Country Status (8)

Country Link
US (1) US4411933A (es)
EP (1) EP0038979B1 (es)
JP (1) JPS56152739A (es)
CA (1) CA1160912A (es)
DE (1) DE3164673D1 (es)
ES (1) ES8207440A1 (es)
HK (1) HK28088A (es)
SG (1) SG58087G (es)

Families Citing this family (44)

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Publication number Priority date Publication date Assignee Title
JPS57197214A (en) * 1981-05-29 1982-12-03 Tanabe Seiyaku Co Ltd Rapid-releasing microcapsule and its preparation
JPS58182994U (ja) * 1982-06-01 1983-12-06 日瀝化学工業株式会社 遮音シ−ト
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
DK151608C (da) * 1982-08-13 1988-06-20 Benzon As Alfred Fremgangsmaade til fremstilling af et farmaceutisk peroralt polydepotpraeparat med kontrolleret afgivelse
DK152744C (da) * 1982-08-13 1988-10-31 Benzon As Alfred Fremgangsmaade til fremstilling af et farmaceutisk peroralt polydepotpraeparat
CA1339269C (en) 1984-05-21 1997-08-12 Douglas P. Cerretti Purification of and cloning of the gene for interleukin-2 receptor
IE58110B1 (en) * 1984-10-30 1993-07-14 Elan Corp Plc Controlled release powder and process for its preparation
NZ221411A (en) * 1986-08-11 1989-10-27 Innovata Biomed Ltd Pharmaceutical compositions containing microcapsules and a surfactant
EP0281034A3 (en) * 1987-02-26 1990-09-19 Tohru Yamamoto An aromatic composition and a method for the production of the same
JPS63235366A (ja) * 1987-03-24 1988-09-30 Shin Etsu Chem Co Ltd ゲル状シリコ−ン組成物
US5690954A (en) * 1987-05-22 1997-11-25 Danbiosyst Uk Limited Enhanced uptake drug delivery system having microspheres containing an active drug and a bioavailability improving material
US4766176A (en) * 1987-07-20 1988-08-23 Dow Corning Corporation Storage stable heat curable organosiloxane compositions containing microencapsulated platinum-containing catalysts
USRE33749E (en) * 1987-07-20 1991-11-19 Dow Corning Corporation Storage stable heat curable organosiloxane compositions containing microencapsulated platinum-containing catalysts
GB8723846D0 (en) * 1987-10-10 1987-11-11 Danbiosyst Ltd Bioadhesive microsphere drug delivery system
HU201869B (en) * 1988-12-30 1991-01-28 Egyt Gyogyszervegyeszeti Gyar Process for producing microcapsules of quick dissolving active component
US5015691A (en) * 1989-05-22 1991-05-14 General Electric Company One part heat curable organopolysiloxane compositions
US4992277A (en) * 1989-08-25 1991-02-12 Schering Corporation Immediate release diltiazem formulation
US5000962A (en) * 1989-08-25 1991-03-19 Schering Corporation Long acting diltiazem formulation
US5252337A (en) * 1991-06-25 1993-10-12 Eurand America, Inc. Controlled release calcium channel blocker microcapsules
JPH05317278A (ja) * 1992-05-26 1993-12-03 Suzuken:Kk 無線伝送式生体情報検出記録装置
US5312882A (en) * 1993-07-30 1994-05-17 The University Of North Carolina At Chapel Hill Heterogeneous polymerization in carbon dioxide
JPH07246329A (ja) * 1994-03-09 1995-09-26 Nippon Paint Co Ltd マイクロカプセルの製造方法及びマイクロカプセル
US5639475A (en) * 1995-02-03 1997-06-17 Eurand America, Incorporated Effervescent microcapsules
US5622723A (en) * 1995-02-03 1997-04-22 Eurand America, Incorporated Procedure for encapsulating chlorpheniramine
CZ299790B6 (cs) 1996-08-22 2008-11-26 Skyepharma Canada Inc. Kompozice mikrocástic ve vode nerozpustné látky, farmaceutická kompozice, zpusob prípravy stabilních cástic, mikrocástice ve vode nerozpustné nebo slabe rozpustné slouceniny, kompozice obsahující tyto mikrocástice a zpusob prípravy mikrocástic
US6465016B2 (en) 1996-08-22 2002-10-15 Research Triangle Pharmaceuticals Cyclosporiine particles
US7255877B2 (en) 1996-08-22 2007-08-14 Jagotec Ag Fenofibrate microparticles
GB2318364B (en) * 1996-10-21 2000-09-13 Kao Corp Detergent composition
US6979456B1 (en) 1998-04-01 2005-12-27 Jagotec Ag Anticancer compositions
EP1079808B1 (en) 1998-05-29 2004-02-11 Skyepharma Canada Inc. Thermoprotected microparticle compositions and process for terminal steam sterilization thereof
KR100777647B1 (ko) 1998-08-19 2007-11-19 스키에파마 캐나다 인코포레이티드 프로포폴의 수용성 주사용 분산액
HUP0105089A3 (en) 1998-11-20 2002-09-30 Skyepharma Canada Inc Compositions containing the active ingredient in form dispersible phospholipid stabilized microparticles
US8586094B2 (en) 2000-09-20 2013-11-19 Jagotec Ag Coated tablets
TWI307634B (es) * 2001-03-30 2009-03-21 Shiseido Co Ltd
JP4031232B2 (ja) * 2001-11-09 2008-01-09 カプスゲル・ジャパン株式会社 新規カプセル
US20050106250A1 (en) 2002-05-10 2005-05-19 Hasseberg Hans A. Protected active compound formulations of amino acids and process for their preparation
US6656975B1 (en) 2002-05-21 2003-12-02 Dow Corning Corporation Silicone dispersions
US8999372B2 (en) * 2002-11-14 2015-04-07 Cure Pharmaceutical Corporation Methods for modulating dissolution, bioavailability, bioequivalence and drug delivery profile of thin film drug delivery systems, controlled-release thin film dosage formats, and methods for their manufacture and use
US20040191302A1 (en) 2003-03-28 2004-09-30 Davidson Robert S. Method and apparatus for minimizing heat, moisture, and shear damage to medicants and other compositions during incorporation of same with edible films
US20040131662A1 (en) 2003-11-12 2004-07-08 Davidson Robert S. Method and apparatus for minimizing heat, moisture, and shear damage to medicants and other compositions during incorporation of same with edible films
US9561182B2 (en) * 2003-08-22 2017-02-07 Cure Pharmaceutical Corporation Edible films for administration of medicaments to animals, methods for their manufacture and methods for their use for the treatment of animals
WO2011046609A2 (en) * 2009-10-15 2011-04-21 Appleton Papers Inc. Encapsulation
CN102430373B (zh) * 2011-09-06 2013-11-06 哈尔滨工业大学 一种有机硅空心微球的制备方法
JP6876063B2 (ja) * 2016-03-30 2021-05-26 ダウ グローバル テクノロジーズ エルエルシー オレオゲルの製造方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415758A (en) * 1960-03-09 1968-12-10 Ncr Co Process of forming minute capsules en masse
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
US3531418A (en) * 1965-08-18 1970-09-29 Ncr Co En masse encapsulation process
US3748277A (en) * 1965-10-14 1973-07-24 Ncr Co Process of forming minute capsules
JPS5212150B1 (es) * 1968-06-04 1977-04-05
US3719599A (en) * 1969-11-25 1973-03-06 Lepetit Spa Solid lubricant composition and method of preparation
JPS528795B2 (es) * 1971-12-30 1977-03-11
BE791458A (fr) * 1972-07-31 1973-05-16 Merck & Co Inc Produit microencapsule
DE2418130A1 (de) * 1973-04-18 1974-11-14 Gen Electric Verfahren zum kontinuierlichen herstellen von elektrischen heizeinheiten und vorrichtung zur durchfuehrung des verfahrens
US4071614A (en) * 1975-06-03 1978-01-31 Colgate Palmolive Company Dentifrice containing encapsulated flavoring
US4107073A (en) * 1977-03-17 1978-08-15 Nalco Chemical Company Pulp and papermaking additive
JPS5432614A (en) * 1977-08-11 1979-03-10 Tanabe Seiyaku Co Ltd Preparation of microcapsules containing pharmaceuticals
JPS54109078A (en) * 1978-02-15 1979-08-27 Norio Tanaka Photoocollapsible microcapsule
US4220552A (en) * 1978-06-05 1980-09-02 The United States Of America As Represented By The Department Of Health, Education & Welfare Method of producing delayed release of sodium fluoride

Also Published As

Publication number Publication date
SG58087G (en) 1988-05-20
US4411933A (en) 1983-10-25
JPS6332501B2 (es) 1988-06-30
CA1160912A (en) 1984-01-24
ES501570A0 (es) 1982-09-16
EP0038979B1 (en) 1984-07-11
DE3164673D1 (en) 1984-08-16
JPS56152739A (en) 1981-11-26
HK28088A (en) 1988-04-22
EP0038979A1 (en) 1981-11-04

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970612