WO1999048480A3 - Verfahren zur herstellung von mikrokapseln - Google Patents

Verfahren zur herstellung von mikrokapseln Download PDF

Info

Publication number
WO1999048480A3
WO1999048480A3 PCT/EP1999/001626 EP9901626W WO9948480A3 WO 1999048480 A3 WO1999048480 A3 WO 1999048480A3 EP 9901626 W EP9901626 W EP 9901626W WO 9948480 A3 WO9948480 A3 WO 9948480A3
Authority
WO
WIPO (PCT)
Prior art keywords
production
micro capsules
chitosane
mol
molecular weight
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.)
Ceased
Application number
PCT/EP1999/001626
Other languages
English (en)
French (fr)
Other versions
WO1999048480A2 (de
Inventor
Uwe Bayer
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.)
Aventis Research and Technologies GmbH and Co KG
Original Assignee
Aventis Research and Technologies GmbH and Co KG
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 Aventis Research and Technologies GmbH and Co KG filed Critical Aventis Research and Technologies GmbH and Co KG
Priority to CA002325420A priority Critical patent/CA2325420A1/en
Priority to JP2000537530A priority patent/JP2002507473A/ja
Priority to EP99914516A priority patent/EP1066031A2/de
Priority to AU33306/99A priority patent/AU733233B2/en
Publication of WO1999048480A2 publication Critical patent/WO1999048480A2/de
Publication of WO1999048480A3 publication Critical patent/WO1999048480A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B01J13/043—Drying and spraying
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)

Abstract

Verfahren zur Herstellung von Mikrokapseln durch Zerstäuben einer wäßrigen Lösung (1), die 0,1 bis 5 Gew.-% mindestens eines wasserlöslichen Polyanions enthält, zu Flüssigkeitströpfchen, wobei die so erhaltenen Flüssigkeitströpfchen auf einen fließenden Film einer wäßrigen Lösung (2) auftreffen, enthaltend: 0,1 bis 5 Gew.-% Calciumkationen; und 0,001 bis 0,4 Gew.-% Chitosan mit einem zahlenmittleren Molekulargewicht größer 40.000 g/mol; und/oder 0,1 bis 5 Gew.-% Chitosan mit einem zahlenmittleren Molekulargewicht zwischen 500 und 40.000 g/mol.
PCT/EP1999/001626 1998-03-25 1999-03-12 Verfahren zur herstellung von mikrokapseln Ceased WO1999048480A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002325420A CA2325420A1 (en) 1998-03-25 1999-03-12 Method for the production of microcapsules
JP2000537530A JP2002507473A (ja) 1998-03-25 1999-03-12 マイクロカプセルの製造法
EP99914516A EP1066031A2 (de) 1998-03-25 1999-03-12 Verfahren zur herstellung von mikrokapseln
AU33306/99A AU733233B2 (en) 1998-03-25 1999-03-12 Process for the production of microcapsules

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813011.2 1998-03-25
DE1998113011 DE19813011A1 (de) 1998-03-25 1998-03-25 Verfahren zur Herstellung von Mikrokapseln

Publications (2)

Publication Number Publication Date
WO1999048480A2 WO1999048480A2 (de) 1999-09-30
WO1999048480A3 true WO1999048480A3 (de) 1999-11-25

Family

ID=7862190

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001626 Ceased WO1999048480A2 (de) 1998-03-25 1999-03-12 Verfahren zur herstellung von mikrokapseln

Country Status (6)

Country Link
EP (1) EP1066031A2 (de)
JP (1) JP2002507473A (de)
AU (1) AU733233B2 (de)
CA (1) CA2325420A1 (de)
DE (1) DE19813011A1 (de)
WO (1) WO1999048480A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008305A1 (de) * 2000-02-23 2001-09-06 Henkel Kgaa Mittel zur Reinigung und Pflege von Haut und/oder Haaren
FR2843965A1 (fr) * 2002-08-28 2004-03-05 Rhodia Chimie Sa Particules sous forme de poudre et dispersions a base d'alginate modifie, et leurs procedes de preparation
US7578951B2 (en) 2004-01-27 2009-08-25 Hewlett-Packard Development Company, L.P. Method of making microcapsules utilizing a fluid ejector
JP2005220068A (ja) * 2004-02-05 2005-08-18 Toppan Printing Co Ltd 経口物用コーティング剤
CN100400580C (zh) * 2005-12-20 2008-07-09 武汉大学 一种聚电解质多糖纳米粒子及其制备方法
CN100391540C (zh) * 2006-02-16 2008-06-04 武汉理工大学 一种药物载体羧甲基壳聚糖纳米粒的制备方法
JP5691273B2 (ja) * 2009-07-23 2015-04-01 Jnc株式会社 液晶配向剤、液晶配向膜及び液晶表示素子
WO2016108234A1 (en) * 2014-12-30 2016-07-07 Yissum Research Develoment Company Of The Hebrew University Of Jerusalem Ltd. Liquid-core capsules comprising non-crosslinked alginate
KR101970470B1 (ko) * 2017-10-27 2019-04-19 충남대학교산학협력단 분무건조 방식을 이용한 에어로졸 입자 생성장치
CN113981555A (zh) * 2021-12-07 2022-01-28 罗莱生活科技股份有限公司 一种芳香型再生纤维素纤维、面料及制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352883A (en) * 1979-03-28 1982-10-05 Damon Corporation Encapsulation of biological material
US4390484A (en) * 1981-04-29 1983-06-28 Ortho Diagnostics, Inc. Methods for promoting the formation of microparticles
US5484721A (en) * 1990-10-19 1996-01-16 Lvmh Recherche Process and apparatus for forming solid particles by cross-linking drops of a cross-linkable material with a free-falling stream of cross-linking agent
US5589370A (en) * 1995-08-01 1996-12-31 Lever Brothers Company, Division Of Conopco, Inc. Process for encapsulating sensitive materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352883A (en) * 1979-03-28 1982-10-05 Damon Corporation Encapsulation of biological material
US4390484A (en) * 1981-04-29 1983-06-28 Ortho Diagnostics, Inc. Methods for promoting the formation of microparticles
US5484721A (en) * 1990-10-19 1996-01-16 Lvmh Recherche Process and apparatus for forming solid particles by cross-linking drops of a cross-linkable material with a free-falling stream of cross-linking agent
US5589370A (en) * 1995-08-01 1996-12-31 Lever Brothers Company, Division Of Conopco, Inc. Process for encapsulating sensitive materials

Also Published As

Publication number Publication date
WO1999048480A2 (de) 1999-09-30
CA2325420A1 (en) 1999-09-30
EP1066031A2 (de) 2001-01-10
AU3330699A (en) 1999-10-18
JP2002507473A (ja) 2002-03-12
DE19813011A1 (de) 1999-10-14
AU733233B2 (en) 2001-05-10

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