WO2004064971A3 - Process for preparing microcapsules having an improved mechanical resistance - Google Patents
Process for preparing microcapsules having an improved mechanical resistance Download PDFInfo
- Publication number
- WO2004064971A3 WO2004064971A3 PCT/CH2004/000029 CH2004000029W WO2004064971A3 WO 2004064971 A3 WO2004064971 A3 WO 2004064971A3 CH 2004000029 W CH2004000029 W CH 2004000029W WO 2004064971 A3 WO2004064971 A3 WO 2004064971A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- microcapsules
- mechanical resistance
- improved mechanical
- polymer membrane
- core
- Prior art date
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
- B01J13/14—Polymerisation; cross-linking
-
- 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
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
-
- 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
- B01J13/20—After-treatment of capsule walls, e.g. hardening
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Abstract
A process for preparing microcapsules having an improved mechanical resistance, more specifically monodisperse microcapsules consisting of an organic liquid core surrounded by a hydrogel polymer membrane comprises: a) using selected hydrophobic organic liquid material as core constituent; b) using selected acrylamide and/or acrylamide derivatives together with alginate as constituents of the monomer mixture leading to the surrounding polymer membrane; c) initiating and then performing polymerization of the selected monomers up to the desired cross-linkage level of the polymer membrane; and d) subjecting the core and the membrane components to a suitable microcapsulation technology, whereby the microcapsules thus achieved have an improved mechanical resistance. Such microcapsules are useful e.g. as vectors for active compounds or as extraction means.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH0300050 | 2003-01-23 | ||
CHPCT/CH03/00050 | 2003-01-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004064971A2 WO2004064971A2 (en) | 2004-08-05 |
WO2004064971A3 true WO2004064971A3 (en) | 2004-10-14 |
Family
ID=32739293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2004/000029 WO2004064971A2 (en) | 2003-01-23 | 2004-01-20 | Process for preparing microcapsules having an improved mechanical resistance |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2004064971A2 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2964017B1 (en) * | 2010-09-01 | 2013-05-31 | Capsum | PROCESS FOR MANUFACTURING A SERIES OF SUBMILLIMETER SIZE CAPSULES |
CN103013976A (en) * | 2013-01-21 | 2013-04-03 | 天津工业大学 | Method for preparing organic-inorganic composite hydrogel membrane and grafting material containing immobilized biological macromolecules |
CN103041445A (en) * | 2013-01-21 | 2013-04-17 | 天津工业大学 | Method for preparing molecular imprinting porous gel membrane for tissue engineering |
CN104177540B (en) * | 2014-03-19 | 2016-05-18 | 太原理工大学 | The preparation method of the fluorescent type temperature intelligent response sensor based on gold nanoclusters |
EP3759154A1 (en) * | 2018-03-02 | 2021-01-06 | Sigilon Therapeutics, Inc. | Biocompatible hydrogel capsules and process for preparing same |
US11794161B1 (en) | 2018-11-21 | 2023-10-24 | Trucapsol, Llc | Reduced permeability microcapsules |
US11571674B1 (en) | 2019-03-28 | 2023-02-07 | Trucapsol Llc | Environmentally biodegradable microcapsules |
US11542392B1 (en) | 2019-04-18 | 2023-01-03 | Trucapsol Llc | Multifunctional particle additive for enhancement of toughness and degradation in biodegradable polymers |
US11484857B2 (en) | 2020-01-30 | 2022-11-01 | Trucapsol Llc | Environmentally biodegradable microcapsules |
US11878280B2 (en) | 2022-04-19 | 2024-01-23 | Trucapsol Llc | Microcapsules comprising natural materials |
US11904288B1 (en) | 2023-02-13 | 2024-02-20 | Trucapsol Llc | Environmentally biodegradable microcapsules |
US11969491B1 (en) | 2023-02-22 | 2024-04-30 | Trucapsol Llc | pH triggered release particle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599639A1 (en) * | 1986-06-06 | 1987-12-11 | Univ Ramot | Process and apparatus for the manufacture of polymer pearls |
JPH0780282A (en) * | 1993-06-24 | 1995-03-28 | Ebara Res Co Ltd | Polymeric hydrogel granular material, production thereof and immobilization of bacteria using the same |
DE10022447A1 (en) * | 1999-05-28 | 2001-03-08 | Inotech Ag Dottikon | In situ extraction of products from fermentations, particularly products that inhibit growth, using encapsulated organic solvent |
EP1306128A1 (en) * | 2001-10-29 | 2003-05-02 | Tenaxis Gmbh | Sorptive composite materials |
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2004
- 2004-01-20 WO PCT/CH2004/000029 patent/WO2004064971A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599639A1 (en) * | 1986-06-06 | 1987-12-11 | Univ Ramot | Process and apparatus for the manufacture of polymer pearls |
JPH0780282A (en) * | 1993-06-24 | 1995-03-28 | Ebara Res Co Ltd | Polymeric hydrogel granular material, production thereof and immobilization of bacteria using the same |
DE10022447A1 (en) * | 1999-05-28 | 2001-03-08 | Inotech Ag Dottikon | In situ extraction of products from fermentations, particularly products that inhibit growth, using encapsulated organic solvent |
EP1306128A1 (en) * | 2001-10-29 | 2003-05-02 | Tenaxis Gmbh | Sorptive composite materials |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 1995, no. 06 31 July 1995 (1995-07-31) * |
STARK, D. ET AL.: "Novel type of in situ extraction: use of solvent containing microcapsules for the bioconversion of 2-Phenylethanol from L-Phenylalanine by Saccharomyces cerevisiae", BIOTECHNOLOGY AND BIOENGINEERING, vol. 83, no. 4, 20 August 2003 (2003-08-20), pages 376 - 385, XP002293121 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004064971A2 (en) | 2004-08-05 |
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