DE3264675D1 - Microcapsules and method of preparing same - Google Patents

Microcapsules and method of preparing same

Info

Publication number
DE3264675D1
DE3264675D1 DE8282108707T DE3264675T DE3264675D1 DE 3264675 D1 DE3264675 D1 DE 3264675D1 DE 8282108707 T DE8282108707 T DE 8282108707T DE 3264675 T DE3264675 T DE 3264675T DE 3264675 D1 DE3264675 D1 DE 3264675D1
Authority
DE
Germany
Prior art keywords
microcapsules
preparing same
core material
ethylcellulose
ethycellulose
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
DE8282108707T
Other languages
English (en)
Inventor
Masayoshi Samejima
Goichi Hirata
Yoshiyuki Koida
Yoshinori Kobayashi
Akira Kida
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
Application granted granted Critical
Publication of DE3264675D1 publication Critical patent/DE3264675D1/de
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
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • 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
    • 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
    • A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
    • 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
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE8282108707T 1981-10-05 1982-09-21 Microcapsules and method of preparing same Expired DE3264675D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56159285A JPS5858146A (ja) 1981-10-05 1981-10-05 速放性マイクロカプセル

Publications (1)

Publication Number Publication Date
DE3264675D1 true DE3264675D1 (en) 1985-08-14

Family

ID=15690449

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282108707T Expired DE3264675D1 (en) 1981-10-05 1982-09-21 Microcapsules and method of preparing same

Country Status (8)

Country Link
US (1) US4462982A (de)
EP (1) EP0076428B1 (de)
JP (1) JPS5858146A (de)
KR (1) KR860001561B1 (de)
AT (1) ATE14193T1 (de)
DE (1) DE3264675D1 (de)
HK (1) HK41488A (de)
SG (1) SG10888G (de)

Families Citing this family (66)

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US4911920A (en) * 1986-07-30 1990-03-27 Alcon Laboratories, Inc. Sustained release, comfort formulation for glaucoma therapy
GB8518301D0 (en) * 1985-07-19 1985-08-29 Fujisawa Pharmaceutical Co Hydrodynamically explosive systems
US4931279A (en) * 1985-08-16 1990-06-05 Bausch & Lomb Incorporated Sustained release formulation containing an ion-exchange resin
JPS6365945A (ja) * 1986-09-05 1988-03-24 Eisai Co Ltd マイクロカプセルの製造方法
US4752470A (en) * 1986-11-24 1988-06-21 Mehta Atul M Controlled release indomethacin
GB8702411D0 (en) * 1987-02-03 1987-03-11 Zyma Sa Swellable pellets
US4784879A (en) * 1987-07-20 1988-11-15 Dow Corning Corporation Method for preparing a microencapsulated compound of a platinum group metal
USRE33749E (en) * 1987-07-20 1991-11-19 Dow Corning Corporation Storage stable heat curable organosiloxane compositions containing microencapsulated platinum-containing catalysts
US4766176A (en) * 1987-07-20 1988-08-23 Dow Corning Corporation Storage stable heat curable organosiloxane compositions containing microencapsulated platinum-containing catalysts
US5093126A (en) * 1987-09-26 1992-03-03 Alcon Laboratories, Inc. Glaucoma formulations comprising an anionic, polysulfonic acid polymer having mucomimetic properties and a polystyrene sulfonic polymer
US5466469A (en) * 1988-06-28 1995-11-14 Cibus Pharmaceutical, Inc. Granular drug delivery system
US5015480A (en) * 1987-11-25 1991-05-14 Eli Lilly And Company Film coating formulations
JPH01207133A (ja) * 1988-02-12 1989-08-21 Matsumoto Yushi Seiyaku Kk 多孔性マイクロカプセル
JPH01207132A (ja) * 1988-02-12 1989-08-21 Matsumoto Yushi Seiyaku Kk 強化マイクロカプセル
US5164195A (en) * 1988-04-19 1992-11-17 Southwest Research Institute Method of oral delivery with an adherent controlled-release salt sensitive capsule
FR2640876B1 (de) * 1988-12-28 1993-09-24 Jouveinal Sa
HU201869B (en) * 1988-12-30 1991-01-28 Egyt Gyogyszervegyeszeti Gyar Process for producing microcapsules of quick dissolving active component
GB8903593D0 (en) * 1989-02-16 1989-04-05 Pafra Ltd Storage of materials
US5007790A (en) * 1989-04-11 1991-04-16 Depomed Systems, Inc. Sustained-release oral drug dosage form
US5015691A (en) * 1989-05-22 1991-05-14 General Electric Company One part heat curable organopolysiloxane compositions
US5082669A (en) * 1989-07-20 1992-01-21 Dainippon Pharmaceutical Co., Ltd. Rapid-releasing oral particle pharmaceutical preparation with unpleasant taste masked
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
JP3034592B2 (ja) * 1990-11-20 2000-04-17 わかもと製薬株式会社 経口用固形製剤及びその製造法
US5252337A (en) * 1991-06-25 1993-10-12 Eurand America, Inc. Controlled release calcium channel blocker microcapsules
GB2258613B (en) * 1991-08-12 1996-01-10 Euro Celtique Sa Pharmaceutical diltiazem formulation
US5422122A (en) * 1992-08-04 1995-06-06 Eurand America, Incorporated Controlled release potassium chloride tablet
FR2702375B1 (fr) * 1993-03-08 1995-05-05 Virbac Laboratoires Microcapsules à libération progressive, leur procédé de préparation et compositions pharmaceutiques ou vétérinaires les contenant.
ZA945944B (en) * 1993-08-13 1996-02-08 Eurand America Inc Procedure for encapsulating nsaids
GB9401894D0 (en) * 1994-02-01 1994-03-30 Rhone Poulenc Rorer Ltd New compositions of matter
US5840338A (en) * 1994-07-18 1998-11-24 Roos; Eric J. Loading of biologically active solutes into polymer gels
US6290991B1 (en) 1994-12-02 2001-09-18 Quandrant Holdings Cambridge Limited Solid dose delivery vehicle and methods of making same
US5639475A (en) * 1995-02-03 1997-06-17 Eurand America, Incorporated Effervescent microcapsules
US5498705A (en) * 1995-02-22 1996-03-12 Kimberly-Clark Corporation Modified polysaccharides having improved absorbent properties and process for the preparation thereof
US6309671B1 (en) 1995-04-14 2001-10-30 Inhale Therapeutic Systems Stable glassy state powder formulations
FR2752162B1 (fr) * 1996-08-07 1998-11-06 Jouveinal Lab Comprime de maleate de trimebutine pellicule
GB2325652A (en) * 1997-05-31 1998-12-02 Camperlands Limited Folding camper with a rigid roof extension
US6258350B1 (en) 1999-01-20 2001-07-10 Alcon Manufacturing, Ltd. Sustained release ophthalmic formulation
ES2162746B1 (es) * 1999-10-21 2003-02-16 Lipotec Sa Microcapsulas para la estabilizacion de productos cosmeticos, farmaceuticos o de alimentacion.
EP1138330A1 (de) * 1999-12-23 2001-10-04 Warner-Lambert Company Kombinationsarzneimittel enthaltend Trimebutin und ein Opiatanalgetikum
US20020043496A1 (en) * 2000-08-01 2002-04-18 Boddu Veera M. Composite biosorbent for treatment of waste aqueous system(s) containing heavy metals
WO2003055437A2 (en) * 2001-12-03 2003-07-10 Belmon Nurit Ltd. Softening cream
US7001615B1 (en) 2001-12-07 2006-02-21 Alcon, Inc. Sustained release ophthalmic, otic and nasal suspension
CA2470636A1 (en) * 2001-12-20 2003-07-03 Pharmacia Corporation Zero-order sustained released dosage forms and method of making the same
ES2448501T3 (es) 2002-03-06 2014-03-14 Effrx Pharmaceuticals Sa Composiciones efervescentes que comprenden bisfosfonatos
US7488496B2 (en) * 2002-03-06 2009-02-10 Christer Rosen Effervescent compositions comprising bisphosphonates and methods related thereto
CA2491797A1 (en) * 2002-07-10 2004-01-22 Warner-Lambert Company Llc Gastrointestinal compositions
US6986901B2 (en) * 2002-07-15 2006-01-17 Warner-Lambert Company Llc Gastrointestinal compositions
US20040010035A1 (en) * 2002-07-15 2004-01-15 Ciociola Arthur A. Gastrointestinal compositions
DE10244504A1 (de) * 2002-09-25 2004-04-08 Capsulution Nanoscience Ag Schnellfreisetzende Darreichungsform mit schwerlöslichem Wirkstoff
US20040127476A1 (en) * 2002-11-14 2004-07-01 Alvin Kershman Oral testosterone delivery system with improved sustained release
WO2004091770A1 (de) * 2003-04-17 2004-10-28 Innogel Ag Verkapselungssystem
US7064146B2 (en) * 2003-06-24 2006-06-20 Medicinova, Inc. Pharmaceutical compositions of isolated orthorhombic crystalline 4-[6-acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenylthio)propoxy]-2-propylphenoxy]butyric acid and methods of use
US7060854B2 (en) * 2003-06-24 2006-06-13 Medicinova, Inc. Process for making polymorphic form A of 4-[6-acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenylthio)propoxy]-2-propylphenoxy]butyric acid
US7632521B2 (en) * 2003-07-15 2009-12-15 Eurand, Inc. Controlled release potassium chloride tablets
GB0501030D0 (en) * 2005-01-19 2005-02-23 Central Science Lab The Formulation
GB0501060D0 (en) * 2005-01-19 2005-02-23 Central Science Lab Representi Microcapsule
WO2009153798A1 (en) * 2008-06-16 2009-12-23 Natco Pharma Limited Cross-linked dextrin as a tablet disintegrant/excipient
EP2315584B1 (de) * 2008-07-31 2018-03-07 Feyecon B.V. Mikrokapsulat und herstellungsverfahren dafür
GB0901084D0 (en) 2009-01-22 2009-03-11 Trayner David J Autostereoscopic display
WO2011046609A2 (en) * 2009-10-15 2011-04-21 Appleton Papers Inc. Encapsulation
CN103492062A (zh) * 2011-02-25 2014-01-01 美利肯公司 胶囊及包含其的组合物
RS60294B1 (sr) * 2011-08-01 2020-07-31 Hb Biotechnologies Corp Nesvarljive kapsule za isporuku materijala koji apsorbuju tečnosti
JP7267439B2 (ja) * 2019-02-13 2023-05-01 シムライズ アーゲー マイクロカプセルの調製のためのプロセス
CN111632560A (zh) * 2020-05-08 2020-09-08 云南巴菰生物科技有限公司 一种持续释香晶球颗粒的制备方法

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US3485914A (en) * 1966-07-05 1969-12-23 Chem & Pharm Patent Hold Ltd Process for the production of a pharmaceutical antibiotic preparation having delayed therapeutic action and the composition prepared according to such process
US3909444A (en) * 1971-08-05 1975-09-30 Ncr Co Microcapsule
US3847895A (en) * 1971-09-30 1974-11-12 Gaf Corp Substituted sulfophenyl-azo-naphthylazo-anilide compounds
BE791458A (fr) * 1972-07-31 1973-05-16 Merck & Co Inc Produit microencapsule
JPS49100216A (de) * 1973-02-01 1974-09-21
FR2353285A1 (fr) * 1975-09-17 1977-12-30 Doms Laboratoires Medicament vasodilatateur coronarien perfectionne
SE418247B (sv) * 1975-11-17 1981-05-18 Haessle Ab Sett att framstella kroppar med reglerad frigoring av en aktiv komponent
JPS52120184A (en) * 1976-03-31 1977-10-08 Denki Kagaku Kogyo Kk Preparation of microcapsules containing microbial cells
JPS5432614A (en) * 1977-08-11 1979-03-10 Tanabe Seiyaku Co Ltd Preparation of microcapsules containing pharmaceuticals
JPS54119021A (en) * 1978-03-06 1979-09-14 Nippon Kayaku Co Ltd Carcinostatic agent
US4205060A (en) * 1978-12-20 1980-05-27 Pennwalt Corporation Microcapsules containing medicament-polymer salt having a water-insoluble polymer sheath, their production and their use
US4252786A (en) * 1979-11-16 1981-02-24 E. R. Squibb & Sons, Inc. Controlled release tablet

Also Published As

Publication number Publication date
HK41488A (en) 1988-06-10
JPS5858146A (ja) 1983-04-06
JPS6323823B2 (de) 1988-05-18
KR860001561B1 (ko) 1986-10-08
EP0076428B1 (de) 1985-07-10
KR840001830A (ko) 1984-06-07
US4462982A (en) 1984-07-31
ATE14193T1 (de) 1985-07-15
SG10888G (en) 1989-09-22
EP0076428A1 (de) 1983-04-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee