FR2431322A1 - Procede de microencapsulation - Google Patents

Procede de microencapsulation

Info

Publication number
FR2431322A1
FR2431322A1 FR7918851A FR7918851A FR2431322A1 FR 2431322 A1 FR2431322 A1 FR 2431322A1 FR 7918851 A FR7918851 A FR 7918851A FR 7918851 A FR7918851 A FR 7918851A FR 2431322 A1 FR2431322 A1 FR 2431322A1
Authority
FR
France
Prior art keywords
particles
water
microencapsulation process
solution
insoluble
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
Application number
FR7918851A
Other languages
English (en)
Other versions
FR2431322B1 (fr
Inventor
Hitoshi Maruyama
Koichi Kajitani
Makoto Shiraishi
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of FR2431322A1 publication Critical patent/FR2431322A1/fr
Application granted granted Critical
Publication of FR2431322B1 publication Critical patent/FR2431322B1/fr
Granted 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
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/08—Simple coacervation, i.e. addition of highly hydrophilic material
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/914—Transfer or decalcomania
    • 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]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Color Printing (AREA)

Abstract

L'invention concerne un procédé d'encapsulation de particules insolubles dans l'eau. Selon le procédé, on disperse la matière insoluble dans l'eau dans une solution aqueuse d'un alcool polyvinylique partiellement saponifié, solution présentant un point de trouble en-dessous de 100 degrés C, et on durcit les gouttelettes entourant les particules. Le procédé selon l'invention donne des microcapsules bien séparées ne présentant pas d'agrégation.
FR7918851A 1978-07-21 1979-07-20 Procede de microencapsulation Granted FR2431322A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8984378A JPS5515681A (en) 1978-07-21 1978-07-21 Production of microcapsule

Publications (2)

Publication Number Publication Date
FR2431322A1 true FR2431322A1 (fr) 1980-02-15
FR2431322B1 FR2431322B1 (fr) 1983-06-24

Family

ID=13982033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7918851A Granted FR2431322A1 (fr) 1978-07-21 1979-07-20 Procede de microencapsulation

Country Status (6)

Country Link
US (1) US4269729A (fr)
JP (1) JPS5515681A (fr)
CA (1) CA1129726A (fr)
DE (1) DE2929287C2 (fr)
FR (1) FR2431322A1 (fr)
GB (1) GB2025887B (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110332A (en) * 1980-12-13 1982-07-09 Kanzaki Paper Mfg Co Ltd Preparation of microcapsule
US4439488A (en) * 1982-02-26 1984-03-27 The United States Of America As Represented By The Secretary Of Agriculture Encapsulation by entrapment within polyhydroxy polymer borates
JP2562624B2 (ja) * 1986-11-07 1996-12-11 昭和電工株式会社 水溶性マイクロカプセルおよび液体洗剤組成物
DE3702029A1 (de) * 1987-01-24 1988-08-04 Basf Ag Waessriges oder pulverfoermiges, wasserdispergierbares praeparat eines in wasser schwerloeslichen pharmazeutischen wirkstoffs und verfahren zu seiner herstellung
JPS649272A (en) * 1987-07-01 1989-01-12 Nippon Kayaku Kk Non-flying granular dye
GB2210702B (en) * 1987-10-02 1991-11-06 Fuji Photo Film Co Ltd Heat sensitive recording material
FR2623977A1 (fr) * 1987-12-08 1989-06-09 Dervieux Dominique Compositions pour l'aromatisation de produits faconnes a base d'elastomeres ainsi que leurs procedes d'aromatisation
JPH01231934A (ja) * 1988-03-10 1989-09-18 Lion Corp マイクロカプセルの製造方法
US5461027A (en) * 1989-01-24 1995-10-24 Griffin Corporation Microencapsulated pendimethalin and method of making and using same
JP2914452B2 (ja) * 1989-09-28 1999-06-28 三菱製紙株式会社 マイクロカプセル及びその製造方法
US5641535A (en) * 1991-03-14 1997-06-24 Wacker-Chemie Gmbh Process for the microencapsulation of water-emulsifiable non-thermoplastic substances
US5292533A (en) * 1992-03-27 1994-03-08 Micro Flo Co. Controlled release microcapsules
US5843409A (en) * 1994-08-08 1998-12-01 Colgate Palmolive Company Two component dentifrice for the treatment of dentinal hypersensitivity
US5700475A (en) * 1995-12-29 1997-12-23 Monsanto Company Stabilized pesticidal compositions and their use
US5959073A (en) * 1997-07-07 1999-09-28 Southwest Research Institute Method for preparing polymeric beads
JPH11202484A (ja) 1998-01-16 1999-07-30 Brother Ind Ltd 画像形成媒体
GB0023713D0 (en) * 2000-09-27 2000-11-08 Unilever Plc A water soluble package
US20040175404A1 (en) * 2002-04-15 2004-09-09 Adi Shefer Moisture triggered sealed release system
US20030194416A1 (en) * 2002-04-15 2003-10-16 Adl Shefer Moisture triggered release systems comprising aroma ingredients providing fragrance burst in response to moisture
US20030216488A1 (en) 2002-04-18 2003-11-20 The Procter & Gamble Company Compositions comprising a dispersant and microcapsules containing an active material
AR040093A1 (es) * 2002-05-21 2005-03-16 Procter & Gamble Composicion limpiadora que comprende perlas suspendidas
US20030224030A1 (en) 2002-05-23 2003-12-04 Hirotaka Uchiyama Methods and articles for reducing airborne particulates
US20050142201A1 (en) * 2003-07-18 2005-06-30 Julia Rashba-Step Methods for fabrication, uses and compositions of small spherical particles of hGH prepared by controlled phase separation
JP2006152529A (ja) * 2004-11-02 2006-06-15 Sk Kaken Co Ltd 衣類
EP2848123B1 (fr) * 2008-10-17 2018-08-01 Encapsys, Llc Composition de diffusion de substances actives agricoles comprenant des microcapsules d'alcool polyvinylique réticulées par des ions persulfate
US7915215B2 (en) * 2008-10-17 2011-03-29 Appleton Papers Inc. Fragrance-delivery composition comprising boron and persulfate ion-crosslinked polyvinyl alcohol microcapsules and method of use thereof
US8951708B2 (en) 2013-06-05 2015-02-10 Xerox Corporation Method of making toners
CN106537514B (zh) * 2014-03-31 2019-03-15 美敦力公司 核辐射粒子电力转换器
CN106659280A (zh) * 2014-06-09 2017-05-10 宝洁公司 提供持久芳香剂的制品
MX2019005389A (es) 2016-11-21 2019-09-10 Bell Flavors & Fragrances Inc Metodos y composicion neutralizante del mal olor.
CN112007593A (zh) * 2020-09-04 2020-12-01 天津城建大学 以硫酸氧钛为钛源的二氧化钛相变微胶囊材料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1304891A (fr) * 1960-11-02 1962-09-28 Ibm Microcapsules et leurs procédés de fabrication
FR2077379A1 (fr) * 1970-01-28 1971-10-22 Ncr Co
FR2159343A1 (fr) * 1971-11-09 1973-06-22 Ncr Co

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318856A (en) * 1964-03-23 1967-05-09 Du Pont Process of gelling polyvinyl alcohol
GB1071170A (en) * 1964-11-23 1967-06-07 Ncr Co Method of manufacturing minute capsules
US3574133A (en) * 1968-01-29 1971-04-06 Ncr Co Encapsulation process and its product
DK129561B (da) * 1968-08-03 1974-10-28 Fuji Photo Film Co Ltd Fremgangsmåde til fremstilling af olieholdige mikrokapsler.
US3875074A (en) * 1972-03-06 1975-04-01 Champion Int Corp Formation of microcapsules by interfacial cross-linking of emulsifier, and microcapsules produced thereby
US3812056A (en) * 1972-07-05 1974-05-21 Ncr Continuous encapsulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1304891A (fr) * 1960-11-02 1962-09-28 Ibm Microcapsules et leurs procédés de fabrication
FR2077379A1 (fr) * 1970-01-28 1971-10-22 Ncr Co
FR2159343A1 (fr) * 1971-11-09 1973-06-22 Ncr Co

Also Published As

Publication number Publication date
GB2025887B (en) 1982-10-13
GB2025887A (en) 1980-01-30
CA1129726A (fr) 1982-08-17
US4269729A (en) 1981-05-26
JPS6228693B2 (fr) 1987-06-22
DE2929287A1 (de) 1980-01-31
DE2929287C2 (de) 1981-10-29
JPS5515681A (en) 1980-02-02
FR2431322B1 (fr) 1983-06-24

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Legal Events

Date Code Title Description
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