GB1483303A - Encapsulation method - Google Patents

Encapsulation method

Info

Publication number
GB1483303A
GB1483303A GB3087575A GB3087575A GB1483303A GB 1483303 A GB1483303 A GB 1483303A GB 3087575 A GB3087575 A GB 3087575A GB 3087575 A GB3087575 A GB 3087575A GB 1483303 A GB1483303 A GB 1483303A
Authority
GB
United Kingdom
Prior art keywords
polymer
parts
sheet support
july
layer
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
GB3087575A
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
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1483303A publication Critical patent/GB1483303A/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/36—Steroidal liquid crystal compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Color Printing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Liquid Crystal Substances (AREA)
  • Fats And Perfumes (AREA)

Abstract

1483303 Encapsulation FUJI PHOTO FILM CO Ltd 23 July 1975 [24 July 1974] 30875/75 Heading B8C In a process for encapsulating water-immiscible material by complex coacervation, the material to be coacervated comprises a mixture of 100 parts dry weight of gelation or a derivative thereof, x parts of gum arabic wherein and a (100-x) parts by weight of a synthetic polymer having an electric charge opposite to that of the gelatine and having a cloud point at a pH of 600 less wherein a is 0À065#a#5. The polymer preferably contains anionic groups such as carboxyl or sulpho groups which may be in a free form or in a salt form. The synthetic polymer may be selected from copolymers comprising acrylic acid, methacrylic acid, acrylamide and derivatives thereof, or may be a maleic acid copolymer, a rosin-modified maleic acid polymer or the hydrolysed product or half alkyl ester thereof. A hydrophilic polymer may be present as an additional component for forming the wall film. There may be prepared a pressure sensitive recording material comprising a sheet support having coated on a surface thereof a layer of microcapsules prepared by the above process and containing a colour-former. Suitably the sheet support is a first sheet and the material additionally includes a second sheet support coated with a layer of a colour developer.
GB3087575A 1974-07-24 1975-07-23 Encapsulation method Expired GB1483303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49084900A JPS5113386A (en) 1974-07-24 1974-07-24

Publications (1)

Publication Number Publication Date
GB1483303A true GB1483303A (en) 1977-08-17

Family

ID=13843603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3087575A Expired GB1483303A (en) 1974-07-24 1975-07-23 Encapsulation method

Country Status (3)

Country Link
JP (1) JPS5113386A (en)
ES (1) ES439633A1 (en)
GB (1) GB1483303A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612556A (en) * 1983-10-07 1986-09-16 The Wiggins Teape Group Limited Self-contained pressure sensitive copying material and its production
GB2225595A (en) * 1987-06-17 1990-06-06 Business Forms Limited Carbonless copy paper
WO2005105290A1 (en) * 2004-04-21 2005-11-10 E.I. Dupont De Nemours And Company Encapsulation of oils by coacervation
CN103406080A (en) * 2013-07-26 2013-11-27 大连工业大学 Conjugation linoleic acid microcapsulate with wall material made of bacteria exopolysaccharide through complex coacervation method
CN104130861A (en) * 2014-07-24 2014-11-05 佩兰生物科技(上海)有限公司 Microcapsule plant essential oil and essential oil soup containing microcapsule plant essential oil

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6178157B2 (en) * 2013-08-09 2017-08-09 花王株式会社 Hard surface treatment method
RU2709172C2 (en) 2015-05-20 2019-12-16 Исихара Сангио Кайся, Лтд. Microencapsulated suspension
EP3344323B1 (en) 2015-09-04 2019-02-27 Petrus A. Besselink Flexible and steerable device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612556A (en) * 1983-10-07 1986-09-16 The Wiggins Teape Group Limited Self-contained pressure sensitive copying material and its production
GB2225595A (en) * 1987-06-17 1990-06-06 Business Forms Limited Carbonless copy paper
GB2225595B (en) * 1987-06-17 1992-11-11 Business Forms Limited Carbonless copy paper
WO2005105290A1 (en) * 2004-04-21 2005-11-10 E.I. Dupont De Nemours And Company Encapsulation of oils by coacervation
CN103406080A (en) * 2013-07-26 2013-11-27 大连工业大学 Conjugation linoleic acid microcapsulate with wall material made of bacteria exopolysaccharide through complex coacervation method
CN103406080B (en) * 2013-07-26 2015-11-18 大连工业大学 Complex coacervation prepares the CLA microcapsules that extracellular polysaccharide of bacteria is wall material
CN104130861A (en) * 2014-07-24 2014-11-05 佩兰生物科技(上海)有限公司 Microcapsule plant essential oil and essential oil soup containing microcapsule plant essential oil

Also Published As

Publication number Publication date
ES439633A1 (en) 1977-03-16
JPS5113386A (en) 1976-02-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee