NO20020881L - Process for Encapsulation of Active Substances by Accumulation of Polymers in Non-Chlorinated Organic Solvents - Google Patents
Process for Encapsulation of Active Substances by Accumulation of Polymers in Non-Chlorinated Organic SolventsInfo
- Publication number
- NO20020881L NO20020881L NO20020881A NO20020881A NO20020881L NO 20020881 L NO20020881 L NO 20020881L NO 20020881 A NO20020881 A NO 20020881A NO 20020881 A NO20020881 A NO 20020881A NO 20020881 L NO20020881 L NO 20020881L
- Authority
- NO
- Norway
- Prior art keywords
- accumulation
- active principle
- encapsulation
- polymers
- solvent
- Prior art date
Links
- 238000009825 accumulation Methods 0.000 title abstract 4
- 229920000642 polymer Polymers 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000003960 organic solvent Substances 0.000 title abstract 2
- 239000013543 active substance Substances 0.000 title 1
- 238000005538 encapsulation Methods 0.000 title 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000007888 film coating Substances 0.000 abstract 1
- 238000009501 film coating Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- B01J13/08—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
- A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
- A61K9/1647—Polyesters, e.g. poly(lactide-co-glycolide)
-
- 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
- A61K9/4841—Filling excipients; Inactive ingredients
- A61K9/4866—Organic macromolecular compounds
-
- 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
Abstract
Foreliggende oppfinnelse angår en fremgangsmåte for en mikroinnkapsling av et aktivt prinsipp ved - samopphopning, som består i en kontrollert løsing eller samopphopning av en polymer løst i et organisk løsemiddel inneholdende nevnte aktive prinsipp, og hvor nevnte samopphopning induseres ved å tilsette et ikke-løsemiddel som gjør at polymeren avsettes på overflaten av det aktive prinsippet, og deretter herde den avsatte polymeren ved å tilsette et herdemiddel, og hvor nevnte herding fører til dannelsen av et kontinuerlig filmbelegg på det aktive prinsippet. Oppfinnelsen erat løsemiddelet er valgt fra etylacetat, N-metylpyrrolidon, metyletylketon og eddiksyre. Ikke-løsemiddelet er fordelaktig en alkohol med fra 2 til 5 karbonatomer, mens herdemiddelet for eksempel er valgt fra vann, alkoholer med opp til 4 karbonatomer og blandinger av disse.The present invention relates to a process for a microencapsulation of an active principle by co-accumulation, which consists in a controlled solution or co-accumulation of a polymer dissolved in an organic solvent containing said active principle, and wherein said co-accumulation is induced by adding a non-solvent which causing the polymer to be deposited on the surface of the active principle, and then curing the deposited polymer by adding a curing agent, said curing leading to the formation of a continuous film coating on the active principle. The invention is the solvent selected from ethyl acetate, N-methylpyrrolidone, methyl ethyl ketone and acetic acid. The non-solvent is advantageously an alcohol having from 2 to 5 carbon atoms, while the curing agent is, for example, selected from water, alcohols having up to 4 carbon atoms and mixtures thereof.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9910854A FR2797784B1 (en) | 1999-08-27 | 1999-08-27 | PROCESS FOR THE ENCAPSULATION OF ACTIVE MATERIALS BY COACERVATION OF POLYMERS IN NON-CHLORINE ORGANIC SOLVENT |
PCT/FR2000/002376 WO2001015799A1 (en) | 1999-08-27 | 2000-08-25 | Method for encapsulating active substances by coacervation of polymers in non-chlorinated organic solvent |
Publications (3)
Publication Number | Publication Date |
---|---|
NO20020881D0 NO20020881D0 (en) | 2002-02-22 |
NO20020881L true NO20020881L (en) | 2002-04-25 |
NO322106B1 NO322106B1 (en) | 2006-08-14 |
Family
ID=9549384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20020881A NO322106B1 (en) | 1999-08-27 | 2002-02-22 | Process for Encapsulation of Active Substances by Phase Separation of Polymers in Non-Chlorinated Organic Solvents |
Country Status (18)
Country | Link |
---|---|
EP (1) | EP1216091B9 (en) |
JP (1) | JP5217070B2 (en) |
KR (1) | KR100661093B1 (en) |
CN (1) | CN1317064C (en) |
AT (1) | ATE261338T1 (en) |
AU (1) | AU776959B2 (en) |
CA (1) | CA2382697C (en) |
DE (1) | DE60008894T2 (en) |
DK (1) | DK1216091T3 (en) |
ES (1) | ES2215718T3 (en) |
FR (1) | FR2797784B1 (en) |
HU (1) | HU228747B1 (en) |
IL (2) | IL148316A0 (en) |
MX (1) | MXPA02002250A (en) |
NO (1) | NO322106B1 (en) |
PT (1) | PT1216091E (en) |
WO (1) | WO2001015799A1 (en) |
ZA (1) | ZA200201543B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1404516A2 (en) | 2000-12-13 | 2004-04-07 | Purdue Research Foundation | Microencapsulation of drugs by solvent exchange |
US6767637B2 (en) | 2000-12-13 | 2004-07-27 | Purdue Research Foundation | Microencapsulation using ultrasonic atomizers |
EP1343480B2 (en) † | 2000-12-21 | 2016-02-17 | Alrise Biosystems GmbH | Induced phase transition method for the production of microparticles containing hydrophobic active agents |
FR2824756B1 (en) * | 2001-05-16 | 2005-07-08 | Mainelab | MICROCAPSULES BASED ON PLANT PROTEINS |
FR2832312B1 (en) * | 2001-11-21 | 2004-01-16 | Inst Nat Sante Rech Med | PROCESS FOR THE PREPARATION OF MICROPARTICLES WITHOUT TOXIC SOLVENT, MICROPARTICLES OBTAINED ACCORDING TO THIS PROCESS, USES AND PHARMACEUTICAL COMPOSITIONS |
US9480631B2 (en) | 2008-11-10 | 2016-11-01 | Colgate-Palmolive Company | Shelf stable capsules |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4389330A (en) * | 1980-10-06 | 1983-06-21 | Stolle Research And Development Corporation | Microencapsulation process |
JPS5966425A (en) * | 1982-10-08 | 1984-04-14 | Mitsui Toatsu Chem Inc | Preparation of fine particle using biodegradable polymer |
JPS62213840A (en) * | 1986-03-14 | 1987-09-19 | Snow Brand Milk Prod Co Ltd | Method for drying microcapsule |
JPS6365945A (en) * | 1986-09-05 | 1988-03-24 | Eisai Co Ltd | Preparation of microcapsule |
US5234520A (en) * | 1987-03-20 | 1993-08-10 | Morgan Adhesives Co. | Method of making an adhesive construction |
JP2670680B2 (en) * | 1988-02-24 | 1997-10-29 | 株式会社ビーエムジー | Polylactic acid microspheres containing physiologically active substance and method for producing the same |
US5324520A (en) * | 1988-12-19 | 1994-06-28 | Vipont Pharmaceutical, Inc. | Intragingival delivery systems for treatment of periodontal disease |
JP3114245B2 (en) * | 1991-06-03 | 2000-12-04 | 藤沢薬品工業株式会社 | Method for producing sustained-release preparation |
DK0674506T3 (en) * | 1992-12-02 | 2001-01-08 | Alkermes Inc | Controlled release growth hormone-containing microspheres |
ES2172574T5 (en) * | 1993-11-19 | 2012-11-29 | Alkermes, Inc. | Preparation of biodegradable microparticles containing a biologically active agent |
US5650173A (en) * | 1993-11-19 | 1997-07-22 | Alkermes Controlled Therapeutics Inc. Ii | Preparation of biodegradable microparticles containing a biologically active agent |
ES2236700T3 (en) * | 1993-11-19 | 2005-07-16 | Janssen Pharmaceutica N.V. | 1,2-MICROENCAPSULATED BENZAZOLS. |
US5792477A (en) * | 1996-05-07 | 1998-08-11 | Alkermes Controlled Therapeutics, Inc. Ii | Preparation of extended shelf-life biodegradable, biocompatible microparticles containing a biologically active agent |
-
1999
- 1999-08-27 FR FR9910854A patent/FR2797784B1/en not_active Expired - Fee Related
-
2000
- 2000-08-25 KR KR1020027002467A patent/KR100661093B1/en not_active IP Right Cessation
- 2000-08-25 ES ES00958741T patent/ES2215718T3/en not_active Expired - Lifetime
- 2000-08-25 DK DK00958741T patent/DK1216091T3/en active
- 2000-08-25 MX MXPA02002250A patent/MXPA02002250A/en active IP Right Grant
- 2000-08-25 JP JP2001520202A patent/JP5217070B2/en not_active Expired - Lifetime
- 2000-08-25 EP EP00958741A patent/EP1216091B9/en not_active Expired - Lifetime
- 2000-08-25 IL IL14831600A patent/IL148316A0/en active IP Right Grant
- 2000-08-25 AT AT00958741T patent/ATE261338T1/en active
- 2000-08-25 WO PCT/FR2000/002376 patent/WO2001015799A1/en active IP Right Grant
- 2000-08-25 AU AU70168/00A patent/AU776959B2/en not_active Ceased
- 2000-08-25 PT PT00958741T patent/PT1216091E/en unknown
- 2000-08-25 CA CA002382697A patent/CA2382697C/en not_active Expired - Fee Related
- 2000-08-25 CN CNB008121311A patent/CN1317064C/en not_active Expired - Fee Related
- 2000-08-25 DE DE60008894T patent/DE60008894T2/en not_active Expired - Lifetime
- 2000-09-25 HU HU0203199A patent/HU228747B1/en not_active IP Right Cessation
-
2002
- 2002-02-21 IL IL148316A patent/IL148316A/en not_active IP Right Cessation
- 2002-02-22 NO NO20020881A patent/NO322106B1/en not_active IP Right Cessation
- 2002-02-26 ZA ZA200201543A patent/ZA200201543B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE261338T1 (en) | 2004-03-15 |
CA2382697A1 (en) | 2001-03-08 |
FR2797784B1 (en) | 2001-11-30 |
PT1216091E (en) | 2004-08-31 |
IL148316A0 (en) | 2002-09-12 |
HU0203199D0 (en) | 2002-10-28 |
CN1317064C (en) | 2007-05-23 |
CA2382697C (en) | 2009-05-05 |
ES2215718T3 (en) | 2004-10-16 |
HU228747B1 (en) | 2013-05-28 |
FR2797784A1 (en) | 2001-03-02 |
EP1216091B9 (en) | 2005-01-19 |
WO2001015799A1 (en) | 2001-03-08 |
JP2003508195A (en) | 2003-03-04 |
MXPA02002250A (en) | 2003-08-20 |
KR20020046284A (en) | 2002-06-20 |
ZA200201543B (en) | 2002-11-27 |
AU776959B2 (en) | 2004-09-30 |
NO322106B1 (en) | 2006-08-14 |
DE60008894D1 (en) | 2004-04-15 |
IL148316A (en) | 2006-10-31 |
EP1216091A1 (en) | 2002-06-26 |
AU7016800A (en) | 2001-03-26 |
DK1216091T3 (en) | 2004-07-12 |
KR100661093B1 (en) | 2006-12-22 |
CN1371301A (en) | 2002-09-25 |
EP1216091B1 (en) | 2004-03-10 |
HUP0203199A2 (en) | 2003-03-28 |
NO20020881D0 (en) | 2002-02-22 |
JP5217070B2 (en) | 2013-06-19 |
DE60008894T2 (en) | 2005-03-03 |
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Legal Events
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MM1K | Lapsed by not paying the annual fees |