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GB1126856A - Improvements in and relating to encapsulation - Google Patents

Improvements in and relating to encapsulation

Info

Publication number
GB1126856A
GB1126856A GB9698/66A GB969866A GB1126856A GB 1126856 A GB1126856 A GB 1126856A GB 9698/66 A GB9698/66 A GB 9698/66A GB 969866 A GB969866 A GB 969866A GB 1126856 A GB1126856 A GB 1126856A
Authority
GB
United Kingdom
Prior art keywords
core material
solution
march
shell
heat
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
GB9698/66A
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.)
Keuffel and Esser Co
Original Assignee
Keuffel and Esser Co
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 Keuffel and Esser Co filed Critical Keuffel and Esser Co
Publication of GB1126856A publication Critical patent/GB1126856A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
    • B41M5/287—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using microcapsules or microspheres 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.]
    • Y10T428/2984—Microcapsule with fluid core [includes liposome]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing Of Micro-Capsules (AREA)

Abstract

1,126,856. Forming capsules. KEUFFEL & ESSER CO. 4 March, 1966 [5 March, 1965], No. 9698/66. Heading B8C. Microcapsules containing a water-immiscible core material in solid or liquid form are made by preparing an aqueous solution of heat-coagulatable shell-forming polymer, adding the core material to the solution and dispersing it therein by agitation, and then heating the mixture to coagulate the polymer around the particles of core material. The shell-forming polymer may be a natural colloid such as egg or blood albumin. Suitable core materials include solutions of dyes in oil. A silicone anti-foaming agent may be added to the albumin solution. Heat to produce coagulation may be applied, for example, by means of a hot plate, infra-red lamp or by the addition of hot water to the agitated mixture.
GB9698/66A 1965-03-05 1966-03-04 Improvements in and relating to encapsulation Expired GB1126856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US437464A US3406119A (en) 1965-03-05 1965-03-05 Encapsulation

Publications (1)

Publication Number Publication Date
GB1126856A true GB1126856A (en) 1968-09-11

Family

ID=23736565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9698/66A Expired GB1126856A (en) 1965-03-05 1966-03-04 Improvements in and relating to encapsulation

Country Status (4)

Country Link
US (1) US3406119A (en)
DE (1) DE1542261A1 (en)
FR (1) FR1470723A (en)
GB (1) GB1126856A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922379A (en) * 1973-12-17 1975-11-25 Abbott Lab Microencapsulation process
US4619904A (en) * 1984-10-29 1986-10-28 General Electric Company Agglutinating immunoassay using protein-coated liquid droplets
US4634681A (en) * 1984-10-29 1987-01-06 General Electric Company Diagnostic method of determining the presence or absence of select proteins in a liquid sample
EP0349428B1 (en) * 1988-06-30 1993-01-20 Centre National De La Recherche Scientifique (Cnrs) Process for preparing colloidal dispersive protein systems in the shape of nanoparticles
US5418010A (en) * 1990-10-05 1995-05-23 Griffith Laboratories Worldwide, Inc. Microencapsulation process
US6610348B2 (en) 1997-02-17 2003-08-26 Fonterra Tech Limited Gelling agents and gels containing them
WO2009006792A1 (en) * 2007-07-06 2009-01-15 The University Of Hong Kong Collagen-based microspheres and methods of preparation and use thereof
EP4035655A1 (en) * 2021-02-01 2022-08-03 Oxford University Innovation Limited Immune modulating particles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL129921C (en) * 1958-12-31
US3137631A (en) * 1959-12-01 1964-06-16 Faberge Inc Encapsulation in natural products

Also Published As

Publication number Publication date
DE1542261A1 (en) 1970-03-26
US3406119A (en) 1968-10-15
FR1470723A (en) 1967-02-24

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