CA948934A - Process for microencapsulating hydrophobic oil droplets - Google Patents

Process for microencapsulating hydrophobic oil droplets

Info

Publication number
CA948934A
CA948934A CA114,676A CA114676A CA948934A CA 948934 A CA948934 A CA 948934A CA 114676 A CA114676 A CA 114676A CA 948934 A CA948934 A CA 948934A
Authority
CA
Canada
Prior art keywords
oil droplets
hydrophobic oil
microencapsulating
microencapsulating hydrophobic
droplets
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.)
Expired
Application number
CA114,676A
Other languages
English (en)
Other versions
CA114676S (en
Inventor
Hiroharu Matsukawa
Keiso Saeki
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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
Priority claimed from JP45047036A external-priority patent/JPS5034512B1/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of CA948934A publication Critical patent/CA948934A/en
Expired 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
    • B01J13/10—Complex coacervation, i.e. interaction of oppositely charged particles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
    • Y10T428/249995—Constituent is in liquid form
    • Y10T428/249997—Encapsulated liquid
    • 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
    • Y10T428/2987—Addition polymer from unsaturated monomers only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
CA114,676A 1970-06-01 1971-06-01 Process for microencapsulating hydrophobic oil droplets Expired CA948934A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP45047036A JPS5034512B1 (enExample) 1970-06-01 1970-06-01
DE2135681A DE2135681C3 (de) 1970-06-01 1971-07-16 Verfahren zur Herstellung von öltropfchen enthaltenden Mikrokapseln

Publications (1)

Publication Number Publication Date
CA948934A true CA948934A (en) 1974-06-11

Family

ID=25761449

Family Applications (1)

Application Number Title Priority Date Filing Date
CA114,676A Expired CA948934A (en) 1970-06-01 1971-06-01 Process for microencapsulating hydrophobic oil droplets

Country Status (7)

Country Link
US (1) US3847832A (enExample)
BE (1) BE767934A (enExample)
CA (1) CA948934A (enExample)
DE (1) DE2135681C3 (enExample)
FR (1) FR2095768A5 (enExample)
GB (1) GB1357419A (enExample)
IE (1) IE35322B1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1036874A (en) * 1973-07-09 1978-08-22 Julia M. Alston Method of employing encapsulated material
US4563212A (en) * 1983-12-27 1986-01-07 Monsanto Company High concentration encapsulation by interfacial polycondensation
WO2005105290A1 (en) * 2004-04-21 2005-11-10 E.I. Dupont De Nemours And Company Encapsulation of oils by coacervation

Also Published As

Publication number Publication date
IE35322B1 (en) 1976-01-07
DE2135681C3 (de) 1979-05-10
GB1357419A (en) 1974-06-19
IE35322L (en) 1971-12-01
DE2135681B2 (de) 1978-09-07
DE2135681A1 (de) 1973-02-01
US3847832A (en) 1974-11-12
BE767934A (fr) 1971-11-03
FR2095768A5 (enExample) 1972-02-11

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