CA2349672A1 - Procede de preparation de capsules constituees d'un noyau de matiere active liquide entoure d'une ecorce minerale - Google Patents
Procede de preparation de capsules constituees d'un noyau de matiere active liquide entoure d'une ecorce minerale Download PDFInfo
- Publication number
- CA2349672A1 CA2349672A1 CA002349672A CA2349672A CA2349672A1 CA 2349672 A1 CA2349672 A1 CA 2349672A1 CA 002349672 A CA002349672 A CA 002349672A CA 2349672 A CA2349672 A CA 2349672A CA 2349672 A1 CA2349672 A1 CA 2349672A1
- Authority
- CA
- Canada
- Prior art keywords
- mineral
- emulsion
- droplets
- precipitate
- active material
- 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
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 6
- 239000011707 mineral Substances 0.000 title abstract 6
- 239000002775 capsule Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 title abstract 2
- 239000011149 active material Substances 0.000 title 1
- 239000011248 coating agent Substances 0.000 title 1
- 238000000576 coating method Methods 0.000 title 1
- 239000000839 emulsion Substances 0.000 abstract 3
- 239000002244 precipitate Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 229910052723 transition metal Inorganic materials 0.000 abstract 1
- 150000003624 transition metals Chemical class 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- 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.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oncology (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Communicable Diseases (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Medicinal Preparation (AREA)
- Cosmetics (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
L'invention a pour objet un procédé pour préparer des capsules minérales constituées d'un noyau liquide aqueux entouré d'une écorce minérale, ledit procédé comprenant: 1) la mise en émulsion d'un fluide aqueux au sein d'une phase non miscible avec ledit fluide aqueux de manière à l'y disperser sous forme de gouttelettes, 2) la mise au contact, au sein de l'émulsion ainsi obtenue, d'au moins un composé hydrolysable et polycondensable de zirconium, silicium, aluminium et/ou un métal de transition dans des conditions de température et de pH propices à la formation d'un précipité constitué de l'oxyde ou l'hydroxyde correspondant et 3) la récupération des capsules minérales ainsi formées et le cas échéant leur purification, ledit procédé étant caractérisé en ce que la formation du précipité minéral dans la second e étape est conduite en présence d'un système tensioactif amphiphile, présent au niveau de l'émulsion et capable de concentrer le dépôt des particules minérales dudit précipité formé à l'interface des gouttelettes aqueuses et d e la phase hydrophobe et de bloquer efficacement leur diffusion au sein desdit es gouttelettes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9813692A FR2785199B1 (fr) | 1998-10-30 | 1998-10-30 | Procede de preparation de capsules constituees d'un noyau de matiere active liquide entoure d'une ecorce minerale |
| FR98/13692 | 1998-10-30 | ||
| PCT/FR1999/002615 WO2000025908A1 (fr) | 1998-10-30 | 1999-10-27 | Procede de preparation de capsules constituees d'un noyau de matiere active liquide entoure d'une ecorce minerale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2349672A1 true CA2349672A1 (fr) | 2000-05-11 |
| CA2349672C CA2349672C (fr) | 2005-03-08 |
Family
ID=9532222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002349672A Expired - Fee Related CA2349672C (fr) | 1998-10-30 | 1999-10-27 | Procede de preparation de capsules constituees d'un noyau de matiere active liquide entoure d'une ecorce minerale |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6537583B1 (fr) |
| EP (1) | EP1124630A1 (fr) |
| JP (1) | JP3459634B2 (fr) |
| AU (1) | AU742240B2 (fr) |
| BR (1) | BR9914918A (fr) |
| CA (1) | CA2349672C (fr) |
| FR (1) | FR2785199B1 (fr) |
| NZ (1) | NZ511368A (fr) |
| WO (1) | WO2000025908A1 (fr) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6238650B1 (en) * | 1999-05-26 | 2001-05-29 | Sol-Gel Technologies Ltd. | Sunscreen composition containing sol-gel microcapsules |
| US7758888B2 (en) | 2000-04-21 | 2010-07-20 | Sol-Gel Technologies Ltd. | Composition exhibiting enhanced formulation stability and delivery of topical active ingredients |
| FR2842438B1 (fr) * | 2002-07-22 | 2004-10-15 | Centre Nat Rech Scient | Procede de preparation de billes contenant une matrice minerale reticulee |
| US7677311B2 (en) * | 2002-08-26 | 2010-03-16 | Schlumberger Technology Corporation | Internal breaker for oilfield treatments |
| JP4406400B2 (ja) * | 2003-03-06 | 2010-01-27 | セイコーエプソン株式会社 | マイクロカプセルおよびその用途 |
| WO2006073061A1 (fr) * | 2004-12-17 | 2006-07-13 | Mitsubishi Chemical Corporation | Nouvelle structure coeur-écorce |
| JP2006199630A (ja) * | 2005-01-21 | 2006-08-03 | Nippon Soda Co Ltd | 徐放性農薬組成物およびその製造方法 |
| EP2431089A1 (fr) | 2005-08-02 | 2012-03-21 | Sol-Gel Technologies Ltd. | Revêtement d'oxyde métallique d'ingrédients insolubles dans l'eau |
| US7635028B2 (en) | 2006-09-18 | 2009-12-22 | Schlumberger Technology Corporation | Acidic internal breaker for viscoelastic surfactant fluids in brine |
| US8481462B2 (en) | 2006-09-18 | 2013-07-09 | Schlumberger Technology Corporation | Oxidative internal breaker system with breaking activators for viscoelastic surfactant fluids |
| JP2010517996A (ja) | 2007-02-01 | 2010-05-27 | ソル − ゲル テクノロジーズ リミテッド | 過酸化物及びレチノイドを含む局所適用用組成物 |
| AU2008211554B2 (en) | 2007-02-01 | 2013-12-19 | Sol-Gel Technologies Ltd. | Method for preparing particles comprising metal oxide coating and particles with metal oxide coating |
| JP5344417B2 (ja) * | 2007-04-17 | 2013-11-20 | 国立大学法人群馬大学 | 水油界面を利用した薬物−シリカ封入体の製造法 |
| US11458105B2 (en) | 2008-12-04 | 2022-10-04 | International Flavors & Fragrances Inc. | Hybrid fragrance encapsulate formulation and method for using the same |
| US9763861B2 (en) | 2008-12-04 | 2017-09-19 | International Flavors & Fragrances Inc. | Stable, flowable silica capsule formulation |
| GB0909909D0 (en) | 2009-06-09 | 2009-07-22 | Chrisal Nv | Microcapsules containing microrgnisms |
| ES2919933T3 (es) * | 2011-03-18 | 2022-07-29 | Int Flavors & Fragrances Inc | Microcápsulas producidas a partir de precursores de sol-gel combinados y método de producción de las mismas |
| US9687465B2 (en) | 2012-11-27 | 2017-06-27 | Sol-Gel Technologies Ltd. | Compositions for the treatment of rosacea |
| EP3651756B1 (fr) | 2017-07-12 | 2025-09-03 | Sol-Gel Technologies Ltd. | Compositions comprenant de la trétinoïne encapsulée |
| CN113631695A (zh) | 2019-04-17 | 2021-11-09 | 宝洁公司 | 胶囊 |
| CA3135389C (fr) | 2019-04-17 | 2023-11-07 | The Procter & Gamble Company | Capsules |
| EP3956054A1 (fr) | 2019-04-17 | 2022-02-23 | The Procter & Gamble Company | Procédés de fabrication de capsules |
| EP4229162B1 (fr) | 2020-10-16 | 2026-05-06 | The Procter & Gamble Company | Particules d'additif pour le soin du linge |
| EP4229166B1 (fr) | 2020-10-16 | 2025-10-08 | The Procter & Gamble Company | Compositions liquides pour l'entretien des tissus comprenant des capsules |
| MX2023004226A (es) | 2020-10-16 | 2023-04-21 | Procter & Gamble | Composiciones antitranspirantes y desodorantes que comprenden capsulas. |
| US12458942B2 (en) | 2020-10-16 | 2025-11-04 | The Procter & Gamble Company | Capsules |
| CN116368210B (zh) | 2020-10-16 | 2025-07-18 | 宝洁公司 | 含有核/壳胶囊的水溶性单位剂量制品 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR401619A (fr) | 1909-04-03 | 1909-09-06 | Fernand Gratieux Fils | Support multiple pour tuyaux à douches et autres tuyaux en caoutchouc |
| US3954666A (en) * | 1974-07-11 | 1976-05-04 | E. I. Du Pont De Nemours And Company | Semipermeable microcapsules containing heterogeneous catalysts and ferromagnetic materials |
| US3954678A (en) * | 1974-07-11 | 1976-05-04 | E. I. Du Pont De Nemours And Company | Semipermeable microcapsules containing a silica gel |
| FR2401619A1 (fr) * | 1977-09-02 | 1979-03-30 | Eastman Kodak Co | Procede pour preparer des granules indegradables dans la panse des ruminants |
| KR920002148A (ko) * | 1990-07-03 | 1992-02-28 | 안드레아 엘. 콜비 | 비스테로이드계 소염제에 의해 유발된 위장 증상을 완화시키기 위한 약제 조성물 및 이를 완화시키는 방법 |
-
1998
- 1998-10-30 FR FR9813692A patent/FR2785199B1/fr not_active Expired - Fee Related
-
1999
- 1999-10-27 CA CA002349672A patent/CA2349672C/fr not_active Expired - Fee Related
- 1999-10-27 AU AU63470/99A patent/AU742240B2/en not_active Ceased
- 1999-10-27 JP JP2000579340A patent/JP3459634B2/ja not_active Expired - Fee Related
- 1999-10-27 US US09/830,797 patent/US6537583B1/en not_active Expired - Fee Related
- 1999-10-27 EP EP99950848A patent/EP1124630A1/fr not_active Withdrawn
- 1999-10-27 BR BR9914918-4A patent/BR9914918A/pt not_active Application Discontinuation
- 1999-10-27 WO PCT/FR1999/002615 patent/WO2000025908A1/fr not_active Ceased
- 1999-10-27 NZ NZ511368A patent/NZ511368A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US6537583B1 (en) | 2003-03-25 |
| JP2002528259A (ja) | 2002-09-03 |
| WO2000025908A1 (fr) | 2000-05-11 |
| AU742240B2 (en) | 2001-12-20 |
| FR2785199B1 (fr) | 2001-01-05 |
| FR2785199A1 (fr) | 2000-05-05 |
| NZ511368A (en) | 2003-09-26 |
| CA2349672C (fr) | 2005-03-08 |
| AU6347099A (en) | 2000-05-22 |
| EP1124630A1 (fr) | 2001-08-22 |
| JP3459634B2 (ja) | 2003-10-20 |
| BR9914918A (pt) | 2001-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |