GB1416224A - Process for producing microcapsules - Google Patents

Process for producing microcapsules

Info

Publication number
GB1416224A
GB1416224A GB736573A GB736573A GB1416224A GB 1416224 A GB1416224 A GB 1416224A GB 736573 A GB736573 A GB 736573A GB 736573 A GB736573 A GB 736573A GB 1416224 A GB1416224 A GB 1416224A
Authority
GB
United Kingdom
Prior art keywords
substances
oil
forming
microcapsules
feb
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
GB736573A
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 GB1416224A publication Critical patent/GB1416224A/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
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/16—Interfacial polymerisation
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A01N25/28—Microcapsules or nanocapsules

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Color Printing (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fats And Perfumes (AREA)

Abstract

1416224 Microcapsules FUJI PHOTO FILM CO Ltd 14 Feb 1973 [14 Feb 1972] 7365/73 Heading B8C Microcapsules containing an oil are prepared by emulsifying in a polar liquid continuous .phase the oil to be encapsulated and which contains first and second wall-forming substances which are capable of reacting together to form a high molecular weight compound, and forming microcapsules by causing a third wallforming substance present in the polar liquid to react at the surface of the oil droplets with the said first wall-forming substance in the same system as the first and second substances are reacted in the interior of the droplets. Suitable first substances are compounds containing two or more isocyanate, isothiocyanate, epoxy, acid chloride, chloroformate or epichlorhydrin groups. Suitable second and third substances are compounds which will react therewith and which contain two or more hydroxyl, carboxyl, mercapto or amino groups. Suitable catalysts to accelerate the reactions may be present, as may be dispersing agents and protective colloids useful in forming the emulsion. The oil may be a vegetable, mineral or synthetic oil and may contain other dissolved substances, in particular dyes or colour formers. Microcapsules containing such constituents may be coated on substrates in the usual way to form record materials.
GB736573A 1972-02-14 1973-02-14 Process for producing microcapsules Expired GB1416224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1534672A JPS553969B2 (en) 1972-02-14 1972-02-14

Publications (1)

Publication Number Publication Date
GB1416224A true GB1416224A (en) 1975-12-03

Family

ID=11886218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB736573A Expired GB1416224A (en) 1972-02-14 1973-02-14 Process for producing microcapsules

Country Status (5)

Country Link
JP (1) JPS553969B2 (en)
BE (1) BE795421A (en)
DE (1) DE2307247A1 (en)
ES (1) ES411568A1 (en)
GB (1) GB1416224A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184992B (en) * 1985-11-29 1989-12-13 Fuji Photo Film Co Ltd Microcapsules, their preparation and pressure-sensitive recording paper containing them
FR2823994A1 (en) * 2001-04-27 2002-10-31 Inst Francais Du Petrole PROCESS FOR THE MANUFACTURE OF MICROCAPSULES BY INTERFACIAL POLYCONDENSATION WITH POLYOXYALKYNEAMINE AND ACID CHLORIDES
CN102960599A (en) * 2012-11-19 2013-03-13 陕西科技大学 Method for preparing bifidobacterium microcapsules containing prebiotics
EP2298439A3 (en) * 2009-09-18 2015-04-15 International Flavors & Fragrances Inc. Encapsulated active material
CN105722495A (en) * 2013-08-15 2016-06-29 国际香料和香精公司 Polyurea or polyurethane capsules

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311712B2 (en) * 1973-03-09 1978-08-10 Bayer Ag, 5090 Leverkusen Process for the production of microcapsules
DE3020781C2 (en) * 1980-05-31 1982-11-18 Hoechst Ag, 6000 Frankfurt Pressure-resistant microcapsules with a polyamide outer shell and an inner mass structured by polyurethane-polyurea or polyurea and process for their production
JP6569226B2 (en) * 2014-01-30 2019-09-04 日本製紙株式会社 Microcapsules and pressure-sensitive copying paper using the same
US10485739B2 (en) * 2014-10-16 2019-11-26 Encapsys Llc High strength microcapsules
US9714396B2 (en) 2014-10-16 2017-07-25 Encapsys Llc Controlled release dual walled microcapsules
US9714397B2 (en) 2014-10-16 2017-07-25 Encapsys Llc Controlled release microcapsules

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945135B1 (en) * 1970-08-21 1974-12-02

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184992B (en) * 1985-11-29 1989-12-13 Fuji Photo Film Co Ltd Microcapsules, their preparation and pressure-sensitive recording paper containing them
FR2823994A1 (en) * 2001-04-27 2002-10-31 Inst Francais Du Petrole PROCESS FOR THE MANUFACTURE OF MICROCAPSULES BY INTERFACIAL POLYCONDENSATION WITH POLYOXYALKYNEAMINE AND ACID CHLORIDES
EP1254701A1 (en) * 2001-04-27 2002-11-06 Institut Francais Du Petrole Process of making microcapsules by interfacial polycondensation between polyoxyalkyleneamine and acid chlorides
US6706397B2 (en) 2001-04-27 2004-03-16 Institut Francais Du Petrole Process for manufacturing microcapsules by interfacial polycondensation with polyoxyalkyleneamine and acid chlorides
EP2298439A3 (en) * 2009-09-18 2015-04-15 International Flavors & Fragrances Inc. Encapsulated active material
EP3459622B1 (en) * 2009-09-18 2022-08-10 International Flavors & Fragrances Inc. Encapsulated active material
CN102960599A (en) * 2012-11-19 2013-03-13 陕西科技大学 Method for preparing bifidobacterium microcapsules containing prebiotics
CN105722495A (en) * 2013-08-15 2016-06-29 国际香料和香精公司 Polyurea or polyurethane capsules

Also Published As

Publication number Publication date
BE795421A (en) 1973-05-29
JPS553969B2 (en) 1980-01-28
DE2307247A1 (en) 1973-08-23
JPS4884086A (en) 1973-11-08
ES411568A1 (en) 1976-01-01

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930212