CA2330472A1 - Encapsulated active materials - Google Patents
Encapsulated active materials Download PDFInfo
- Publication number
- CA2330472A1 CA2330472A1 CA002330472A CA2330472A CA2330472A1 CA 2330472 A1 CA2330472 A1 CA 2330472A1 CA 002330472 A CA002330472 A CA 002330472A CA 2330472 A CA2330472 A CA 2330472A CA 2330472 A1 CA2330472 A1 CA 2330472A1
- Authority
- CA
- Canada
- Prior art keywords
- active agent
- encapsulated
- agent
- conditions
- agents
- 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
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
- B01J13/04—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
-
- 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
- B01J13/206—Hardening; drying
-
- 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]
-
- 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]
- Y10T428/2985—Solid-walled microcapsule from synthetic polymer
-
- 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]
- Y10T428/2985—Solid-walled microcapsule from synthetic polymer
- Y10T428/2987—Addition polymer from unsaturated monomers only
-
- 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
The invention is an encapsulated active agent comprising an active agent encapsulated in a crystallizable or thermoplastic polymer wherein the particle size of the encapsulated active agent is 3,000 microns or less wherein the active agent is not significantly extractable from the particles under ambient conditions. In another embodiment the invention is a process for preparing an encapsulated agent which comprises: a) contacting an active agent with a crystallizable or thermoplastic polymer wherein the polymer is molten and the active agent is not volatile under the contacting conditions; b) forming particles of 3000 microns or less; and c) exposing the particles to conditions such that the portion of the particle at and near the surface undergoes rapid solidification. The encapsulated active agents of the invention do not require washing in order for them to be stable in curable compositions.
These encapsulated active agents can be designed to release the active agent at a desired temperature. The encapsulated agents of the invention demonstrate excellent stability at ambient temperatures and exhibit relatively rapid reactivity upon release of the active agent.
Furthermore, the presence of the encapsulating agent does not result in deterioration of adhesive or elastomer properties of a cured composition after preparation.
These encapsulated active agents can be designed to release the active agent at a desired temperature. The encapsulated agents of the invention demonstrate excellent stability at ambient temperatures and exhibit relatively rapid reactivity upon release of the active agent.
Furthermore, the presence of the encapsulating agent does not result in deterioration of adhesive or elastomer properties of a cured composition after preparation.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8312798P | 1998-04-27 | 1998-04-27 | |
US60/083,127 | 1998-04-27 | ||
PCT/US1999/009105 WO1999055454A1 (en) | 1998-04-27 | 1999-04-27 | Encapsulated active materials |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2330472A1 true CA2330472A1 (en) | 1999-11-04 |
CA2330472C CA2330472C (en) | 2007-09-04 |
Family
ID=22176365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002330472A Expired - Fee Related CA2330472C (en) | 1998-04-27 | 1999-04-27 | Encapsulated active materials |
Country Status (12)
Country | Link |
---|---|
US (1) | US6224793B1 (en) |
EP (1) | EP1077763B1 (en) |
JP (2) | JP2002513045A (en) |
KR (1) | KR100577629B1 (en) |
CN (1) | CN1207090C (en) |
AT (1) | ATE259257T1 (en) |
AU (1) | AU3666799A (en) |
BR (1) | BR9910337B1 (en) |
CA (1) | CA2330472C (en) |
DE (1) | DE69914739T2 (en) |
ES (1) | ES2212552T3 (en) |
WO (1) | WO1999055454A1 (en) |
Families Citing this family (55)
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CA2330384A1 (en) * | 1998-04-27 | 1999-11-04 | The Dow Chemical Company | Cure on demand adhesives and window module with cure on demand adhesive thereon |
JP2000044636A (en) * | 1998-05-27 | 2000-02-15 | Hitachi Chem Co Ltd | Thermosetting resin composition and production of coil using the same |
JP2000273323A (en) * | 1999-03-24 | 2000-10-03 | Hitachi Chem Co Ltd | Curing agent composition, thermosetting resin composition and pipe-lining material and pipe-lining method using the same |
JP2001200021A (en) * | 2000-01-19 | 2001-07-24 | Hitachi Chem Co Ltd | Resin composition |
US6518330B2 (en) * | 2001-02-13 | 2003-02-11 | Board Of Trustees Of University Of Illinois | Multifunctional autonomically healing composite material |
GB2377661B (en) * | 2001-07-20 | 2005-04-20 | Univ Newcastle | Methods of manufacturing particles |
MXPA03002222A (en) * | 2002-03-28 | 2004-10-29 | Rohm & Haas | Coating powders, methods of manufacture thereof, and articles formed therefrom. |
US7179766B2 (en) * | 2002-12-19 | 2007-02-20 | Sud-Chemie Inc. | Method and apparatus for production of enrobed catalyst pastilles or flakes |
US7192991B2 (en) * | 2003-11-26 | 2007-03-20 | 3M Innovative Properties Company | Cationically curable composition |
DE102004020429A1 (en) * | 2004-04-27 | 2005-11-24 | Degussa Ag | Uretdione group-containing polyurethane compositions which are curable at low temperature and contain (partially) crystalline resins |
US7566747B2 (en) * | 2004-05-07 | 2009-07-28 | The Board Of Trustees Of The University Of Illinois | Wax particles for protection of activators, and multifunctional autonomically healing composite materials |
JP4733933B2 (en) * | 2004-06-18 | 2011-07-27 | 東レ・ダウコーニング株式会社 | Curable organopolysiloxane composition |
JP5366291B2 (en) * | 2004-09-01 | 2013-12-11 | アプヴィオン インコーポレイテッド | Encapsulated curing system |
EP1690528A1 (en) * | 2005-02-11 | 2006-08-16 | Abbott GmbH & Co. KG | Process for the preparation of dosage forms comprising a solid dispersion of a microcrystalline active agent |
EP1875961B1 (en) | 2005-04-07 | 2018-08-29 | Mitsui Chemicals, Inc. | Capsular fine particle comprising olefinic polymer |
US7612152B2 (en) * | 2005-05-06 | 2009-11-03 | The Board Of Trustees Of The University Of Illinois | Self-healing polymers |
JP4678591B2 (en) * | 2005-08-31 | 2011-04-27 | カシオ電子工業株式会社 | Microcapsules for ultrasonic destruction |
DE102006040123A1 (en) * | 2006-08-26 | 2008-03-20 | Evonik Degussa Gmbh | Process for the preparation of microparticles |
US7723405B2 (en) * | 2006-01-05 | 2010-05-25 | The Board Of Trustees Of The University Of Illinois | Self-healing coating system |
US20070173602A1 (en) * | 2006-01-25 | 2007-07-26 | Brinkman Larry F | Encapsulated Michael addition catalyst |
MX2008013847A (en) * | 2006-05-11 | 2009-03-04 | Air Prod & Chem | Cosmetic compositions containing side chain crystalline (sec) polymers. |
US7569625B2 (en) * | 2006-06-02 | 2009-08-04 | The Board Of Trustees Of The University Of Illinois | Self-healing elastomer system |
US20100004124A1 (en) * | 2006-12-05 | 2010-01-07 | David Taft | Systems and methods for delivery of materials for agriculture and aquaculture |
US20090246155A1 (en) * | 2006-12-05 | 2009-10-01 | Landec Corporation | Compositions and methods for personal care |
WO2008070118A1 (en) * | 2006-12-05 | 2008-06-12 | Landec Corporation | Drug delivery |
US20090263346A1 (en) * | 2006-12-05 | 2009-10-22 | David Taft | Systems and methods for delivery of drugs |
US8399007B2 (en) * | 2006-12-05 | 2013-03-19 | Landec Corporation | Method for formulating a controlled-release pharmaceutical formulation |
WO2008079677A2 (en) * | 2006-12-20 | 2008-07-03 | Arkema Inc. | Polymer encapsulation and/or binding |
US7842146B2 (en) * | 2007-01-26 | 2010-11-30 | Dow Global Technologies Inc. | Ultrasonic energy for adhesive bonding |
EP1953199A1 (en) * | 2007-02-01 | 2008-08-06 | Stichting Dutch Polymer Institute | Powder coating composition comprising an encapsulated crosslinker |
US7846551B2 (en) | 2007-03-16 | 2010-12-07 | Tdy Industries, Inc. | Composite articles |
US20080299391A1 (en) * | 2007-05-31 | 2008-12-04 | White Scott R | Capsules, methods for making capsules, and self-healing composites including the same |
US8114883B2 (en) * | 2007-12-04 | 2012-02-14 | Landec Corporation | Polymer formulations for delivery of bioactive materials |
US20090181254A1 (en) * | 2008-01-15 | 2009-07-16 | The Board Of Trustees Of The University Of Illinois | Multi-capsule system and its use for encapsulating active agents |
US9233063B2 (en) * | 2009-12-17 | 2016-01-12 | Air Products And Chemicals, Inc. | Polymeric compositions for personal care products |
US8663596B2 (en) * | 2010-01-25 | 2014-03-04 | Fluor Enterprises, Inc. | Reactor, a structure packing, and a method for improving oxidation of hydrogen sulfide or polysulfides in liquid sulfur |
US8361432B2 (en) | 2010-12-08 | 2013-01-29 | Fluor Enterprises, Inc. | Reactor, a retained catalyst structure, and a method for improving decomposition of polysulfides and removal of hydrogen sulfide in liquid sulfur |
CN103889918B (en) | 2011-06-14 | 2017-11-07 | 西格纳化学有限责任公司 | The foamed cement composition comprising metal silicide in missile silo operation can be used in |
CN102417613A (en) * | 2011-07-26 | 2012-04-18 | 东莞市贝特利新材料有限公司 | Preparation method of additive applied in addition type liquid silicone rubber |
EP2809699B1 (en) * | 2012-02-02 | 2020-04-08 | Arkema, Inc. | Improved shelf life of polyol blends containing halogenated olefins by encapsulation of active components |
US9677392B2 (en) | 2012-06-25 | 2017-06-13 | Signa Chemistry, Inc. | Use of metal silicides in hydrocarbon production and transportation |
TW201414796A (en) * | 2012-07-27 | 2014-04-16 | Dow Corning | Self-adhering curable silicone adhesive compositions and process for making thereof |
JP6057589B2 (en) | 2012-07-27 | 2017-01-11 | 東レ・ダウコーニング株式会社 | Fine particles and curable organopolysiloxane composition containing the same |
JP6075074B2 (en) * | 2013-01-22 | 2017-02-08 | 住友ベークライト株式会社 | Injection and filling method |
WO2015002749A1 (en) * | 2013-07-01 | 2015-01-08 | Mark Andy, Inc. | Method and apparatus for in-line solventless lamination |
US9018327B1 (en) * | 2013-11-08 | 2015-04-28 | Ppg Industries Ohio, Inc. | Catalyst compositions and methods of preparing them |
US9683129B2 (en) * | 2014-12-04 | 2017-06-20 | Prc-Desoto International, Inc. | Polythioether sealants with extended working time |
WO2017100459A1 (en) * | 2015-12-10 | 2017-06-15 | Prc-Desoto International, Inc. | Cure-on-demand moisture-curable urethane-containing fuel resistant prepolymers and compositions thereof |
CN106833098A (en) * | 2017-02-16 | 2017-06-13 | 佛山市涂亿装饰材料科技有限公司 | A kind of production technology of the ultrafine microencapsulated curing accelerator product of the thermosetting powder coating for being exclusively used in low-temperature setting |
KR20190123332A (en) | 2017-03-09 | 2019-10-31 | 바스프 에스이 | Polyurethane formulations for the production of composite elements |
JP2020509930A (en) * | 2017-03-09 | 2020-04-02 | コンストラクション リサーチ アンド テクノロジー ゲーエムベーハーConstruction Research & Technology GmbH | Microencapsulated polyaddition catalyst |
BR112020013015A2 (en) | 2018-01-26 | 2020-11-24 | Allnex Netherlands B.V. | powder coating composition, process for preparing a powder coating composition, powder coating method, coated articles, use of a catalyst system c, polymer crosslinkable, polymer, and, use of a polymer |
JP7318250B2 (en) * | 2018-03-29 | 2023-08-01 | 東ソー株式会社 | Catalyst-encapsulating polyvinyl resin fine particles, said fine particle composition, catalyst-encapsulating polyvinyl resin fine particles, and method for producing said fine particle composition |
WO2020165135A1 (en) | 2019-02-11 | 2020-08-20 | Basf Se | Acrylic copolymer capsule designed to open up at < 90°c for controlled release of in-situ forming pu/pir catalyst |
CN110549037B (en) * | 2019-09-23 | 2021-06-01 | 广东省科学院中乌焊接研究所 | Capsule shell material, microcapsule active agent for soft soldering and preparation method thereof, solder paste and application thereof |
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-
1999
- 1999-04-27 DE DE69914739T patent/DE69914739T2/en not_active Expired - Lifetime
- 1999-04-27 BR BRPI9910337-0A patent/BR9910337B1/en not_active IP Right Cessation
- 1999-04-27 EP EP99918850A patent/EP1077763B1/en not_active Expired - Lifetime
- 1999-04-27 JP JP2000545641A patent/JP2002513045A/en not_active Withdrawn
- 1999-04-27 AT AT99918850T patent/ATE259257T1/en not_active IP Right Cessation
- 1999-04-27 AU AU36667/99A patent/AU3666799A/en not_active Abandoned
- 1999-04-27 CA CA002330472A patent/CA2330472C/en not_active Expired - Fee Related
- 1999-04-27 CN CNB998055018A patent/CN1207090C/en not_active Expired - Fee Related
- 1999-04-27 KR KR1020007011990A patent/KR100577629B1/en not_active IP Right Cessation
- 1999-04-27 ES ES99918850T patent/ES2212552T3/en not_active Expired - Lifetime
- 1999-04-27 US US09/300,339 patent/US6224793B1/en not_active Expired - Lifetime
- 1999-04-27 WO PCT/US1999/009105 patent/WO1999055454A1/en active IP Right Grant
-
2010
- 2010-11-25 JP JP2010262560A patent/JP5351131B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1077763A1 (en) | 2001-02-28 |
DE69914739T2 (en) | 2004-09-30 |
US6224793B1 (en) | 2001-05-01 |
BR9910337A (en) | 2001-01-09 |
CN1298321A (en) | 2001-06-06 |
JP2002513045A (en) | 2002-05-08 |
ATE259257T1 (en) | 2004-02-15 |
ES2212552T3 (en) | 2004-07-16 |
CN1207090C (en) | 2005-06-22 |
EP1077763B1 (en) | 2004-02-11 |
KR20010043104A (en) | 2001-05-25 |
CA2330472C (en) | 2007-09-04 |
AU3666799A (en) | 1999-11-16 |
WO1999055454A1 (en) | 1999-11-04 |
JP2011072999A (en) | 2011-04-14 |
KR100577629B1 (en) | 2006-05-10 |
BR9910337B1 (en) | 2010-08-24 |
JP5351131B2 (en) | 2013-11-27 |
DE69914739D1 (en) | 2004-03-18 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request | ||
MKLA | Lapsed |