GB1483542A - Microencapsulation method - Google Patents

Microencapsulation method

Info

Publication number
GB1483542A
GB1483542A GB3089475A GB3089475A GB1483542A GB 1483542 A GB1483542 A GB 1483542A GB 3089475 A GB3089475 A GB 3089475A GB 3089475 A GB3089475 A GB 3089475A GB 1483542 A GB1483542 A GB 1483542A
Authority
GB
United Kingdom
Prior art keywords
mucoid
mixture
weight
oil
parts
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
GB3089475A
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 GB1483542A publication Critical patent/GB1483542A/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
    • B01J13/10—Complex coacervation, i.e. interaction of oppositely charged particles
    • 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

Abstract

1483542 Encapsulation FUJI PHOTO FILM CO Ltd 23 July 1975 [24 July 1974] 30894/75 Heading B8C In a process for encapsulating water-immiscible materials by complex coacervation, the material to be coacervated comprises a mixture of 100 parts by weight of gelatin, x parts by weight of gum arabic where x is 0<x8#0 and a (100-x) parts by weight of a natural polymer having an electric charge opposite to that of the gelatin and having a cloud point at a pH of 3À0 to 6À5, where a is 0À004#a#3. The natural polymer is preferably a plant mucoid, plant gum, seaweed mucoid, animal mucoid, cellulose ether, cellulose ester, starch ether, starch ester, lignin derivative, nucleic acid or a mixture thereof. The polymer preferably has at least one anionic group, e.g. a -COO-, -SO 3 - or -OPO 3 -- group. The water immiscible material is suitably a natural oil, animal oil, a vegetable oil or a synthetic oil. The coacervation mixture may contain a hydrophilic polymer. Microcapsules prepared by the above process may be coated on to a surface of a sheet support to form a pressure-sensitive recording material.
GB3089475A 1974-07-24 1975-07-23 Microencapsulation method Expired GB1483542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49084905A JPS5113387A (en) 1974-07-24 1974-07-24

Publications (1)

Publication Number Publication Date
GB1483542A true GB1483542A (en) 1977-08-24

Family

ID=13843740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3089475A Expired GB1483542A (en) 1974-07-24 1975-07-23 Microencapsulation method

Country Status (3)

Country Link
JP (1) JPS5113387A (en)
ES (1) ES439634A1 (en)
GB (1) GB1483542A (en)

Cited By (16)

* 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
EP0212751A2 (en) * 1985-08-29 1987-03-04 FARMACEUTICI FORMENTI S.p.A. Process for the microencapsulation of a medicament, medicament so prepared and pharmaceutical compositions comprising it
US4946624A (en) * 1989-02-27 1990-08-07 The Procter & Gamble Company Microcapsules containing hydrophobic liquid core
US5035844A (en) * 1988-04-23 1991-07-30 The Wiggins Teape Group Limited Process for the production of microcapsules
US5112688A (en) * 1989-02-27 1992-05-12 The Procter & Gamble Company Microcapsules containing hydrophobic liquid core
WO1993022537A1 (en) 1992-05-05 1993-11-11 The Procter & Gamble Company Microencapsulated oil field chemicals and process for their use
WO2003089561A2 (en) 2002-04-18 2003-10-30 The Procter & Gamble Company Compositions comprising a dispersant and microcapsules containing an active material
WO2003099981A1 (en) 2002-05-23 2003-12-04 The Procter & Gamble Company Methods and articles for reducing airborne particulates
EP1462157A1 (en) * 2003-03-24 2004-09-29 Cognis Iberia, S.L. Microcapsules (XXIII)
WO2005105290A1 (en) * 2004-04-21 2005-11-10 E.I. Dupont De Nemours And Company Encapsulation of oils by coacervation
GB2498146A (en) * 2013-04-15 2013-07-03 Rotam Agrochem Int Co Ltd A herbicide composition comprising clomazone encapsulated within microcapsules formed by coacervation of amphoteric polymer electrolytes
EP2865372A1 (en) * 2013-10-22 2015-04-29 Symrise AG Capsules comprising actives
US9499773B2 (en) 2007-01-11 2016-11-22 Novozymes A/S Enzyme particles comprising a vinyl pyrrolidone/vinyl acetate copolymer
WO2018094314A1 (en) 2016-11-21 2018-05-24 Bell Flavors & Fragrances, Inc. Malodor counteractant composition and methods
EP3298894A4 (en) * 2015-05-20 2018-11-21 Ishihara Sangyo Kaisha, Ltd. Microcapsule suspension
CN111053287A (en) * 2020-01-07 2020-04-24 湖北中烟工业有限责任公司 Method for preparing cigarette blasting beads by lignin-carbohydrate coated essence

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612018B1 (en) * 1987-03-06 1989-05-26 Labo Electronique Physique HYPERFREQUENCY MIXER
JP6899909B2 (en) 2016-12-22 2021-07-07 シムライズ アーゲー Microcapsules

Cited By (23)

* 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
EP0212751A2 (en) * 1985-08-29 1987-03-04 FARMACEUTICI FORMENTI S.p.A. Process for the microencapsulation of a medicament, medicament so prepared and pharmaceutical compositions comprising it
EP0212751A3 (en) * 1985-08-29 1987-08-12 Farmaceutici Formenti S.P.A. Process for the microencapsulation of a medicament, medicament so prepared and pharmaceutical compositions comprising it
US4766012A (en) * 1985-08-29 1988-08-23 Farmaceutici Formenti S.P.A. Microencapsulation of a medicament
US5035844A (en) * 1988-04-23 1991-07-30 The Wiggins Teape Group Limited Process for the production of microcapsules
US4946624A (en) * 1989-02-27 1990-08-07 The Procter & Gamble Company Microcapsules containing hydrophobic liquid core
US5112688A (en) * 1989-02-27 1992-05-12 The Procter & Gamble Company Microcapsules containing hydrophobic liquid core
WO1993022537A1 (en) 1992-05-05 1993-11-11 The Procter & Gamble Company Microencapsulated oil field chemicals and process for their use
WO2003089561A2 (en) 2002-04-18 2003-10-30 The Procter & Gamble Company Compositions comprising a dispersant and microcapsules containing an active material
EP2248881A1 (en) 2002-05-23 2010-11-10 The Procter and Gamble Company Methods and articles for reducing airborne particles
WO2003099981A1 (en) 2002-05-23 2003-12-04 The Procter & Gamble Company Methods and articles for reducing airborne particulates
EP1462157A1 (en) * 2003-03-24 2004-09-29 Cognis Iberia, S.L. Microcapsules (XXIII)
WO2005105290A1 (en) * 2004-04-21 2005-11-10 E.I. Dupont De Nemours And Company Encapsulation of oils by coacervation
US9499773B2 (en) 2007-01-11 2016-11-22 Novozymes A/S Enzyme particles comprising a vinyl pyrrolidone/vinyl acetate copolymer
GB2498146A (en) * 2013-04-15 2013-07-03 Rotam Agrochem Int Co Ltd A herbicide composition comprising clomazone encapsulated within microcapsules formed by coacervation of amphoteric polymer electrolytes
GB2498146B (en) * 2013-04-15 2016-03-16 Rotam Agrochem Int Co Ltd A herbicide composition comprising clomazone encapsulated within microcapsules formed by coacervation of amphoteric polymer electrolytes
EP2865372A1 (en) * 2013-10-22 2015-04-29 Symrise AG Capsules comprising actives
WO2015059062A1 (en) * 2013-10-22 2015-04-30 Symrise Ag Active ingredient capsules
US10299996B2 (en) 2013-10-22 2019-05-28 Symrise Ag Active ingredient capsules
EP3298894A4 (en) * 2015-05-20 2018-11-21 Ishihara Sangyo Kaisha, Ltd. Microcapsule suspension
US10524468B2 (en) 2015-05-20 2020-01-07 Ishihara Sangyo Kaisha, Ltd. Microcapsule suspension
WO2018094314A1 (en) 2016-11-21 2018-05-24 Bell Flavors & Fragrances, Inc. Malodor counteractant composition and methods
CN111053287A (en) * 2020-01-07 2020-04-24 湖北中烟工业有限责任公司 Method for preparing cigarette blasting beads by lignin-carbohydrate coated essence

Also Published As

Publication number Publication date
ES439634A1 (en) 1977-07-16
JPS5113387A (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

Effective date: 19920723