[go: up one dir, main page]

IE34605B1 - Process for preparing oil-containing microcapsules - Google Patents

Process for preparing oil-containing microcapsules

Info

Publication number
IE34605B1
IE34605B1 IE72370A IE72370A IE34605B1 IE 34605 B1 IE34605 B1 IE 34605B1 IE 72370 A IE72370 A IE 72370A IE 72370 A IE72370 A IE 72370A IE 34605 B1 IE34605 B1 IE 34605B1
Authority
IE
Ireland
Prior art keywords
cellulose
starch
oil
june
acid esters
Prior art date
Application number
IE72370A
Other versions
IE34605L (en
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 IE34605L publication Critical patent/IE34605L/en
Publication of IE34605B1 publication Critical patent/IE34605B1/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Color Printing (AREA)
  • Medicinal Preparation (AREA)

Abstract

1318411 Microcapsules FUJI PHOTO FILM Co Ltd 4 June 1970 [5 June 1969] 27064/70 Heading B8C Oil-containing microcapsules are prepared by dispersing an oil in an aqueous sol of gelatine and another colloid of opposite charge and causing coacervation of a colloid complex which encapsulates the oil droplets. The capsule walls are hardened by addition of an aldehyde hardening agent e.g. formaldehyde and conversion of the pH to alkalinity, one or both additions being subsequent to the addition of an aqueous solution of an anionic, high molecular weight electrolyte and of an anionic surfactant. Suitable surfactants are alkali metal salts of naphthalene sulphonates, naphthalene sulphonic acid/formaldehyde condensates, polyoxyethylene alkyl and alkyl phenyl sulphonates and sulphosuccinates. Suitable electrolytes are starch and cellulose carboxy methyl ethers, sulphuric acid esters of cellulose, starch and hydroxyethyl cellulose and phosphoric acid esters of cellulose and starch. Examples relate to the encapsulation of chlorinated diphenyl. [GB1318411A]
IE72370A 1969-06-05 1970-06-04 Process for preparing oil-containing microcapsules IE34605B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44043597A JPS5027829B1 (en) 1969-06-05 1969-06-05

Publications (2)

Publication Number Publication Date
IE34605L IE34605L (en) 1970-12-05
IE34605B1 true IE34605B1 (en) 1975-06-25

Family

ID=12668199

Family Applications (1)

Application Number Title Priority Date Filing Date
IE72370A IE34605B1 (en) 1969-06-05 1970-06-04 Process for preparing oil-containing microcapsules

Country Status (7)

Country Link
JP (1) JPS5027829B1 (en)
CH (1) CH560068A5 (en)
DE (1) DE2027819C3 (en)
DK (1) DK130772B (en)
FR (1) FR2049982A5 (en)
GB (1) GB1318411A (en)
IE (1) IE34605B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9205712D0 (en) * 1992-03-16 1992-04-29 Allied Colloids Ltd Coacervation processes
CN113025061A (en) * 2021-02-04 2021-06-25 东莞波顿香料有限公司 Composite material, composite coacervation microcapsule, and preparation method and application thereof

Also Published As

Publication number Publication date
DE2027819C3 (en) 1979-08-09
DE2027819B2 (en) 1978-12-07
DE2027819A1 (en) 1970-12-17
CH560068A5 (en) 1975-03-27
JPS5027829B1 (en) 1975-09-10
GB1318411A (en) 1973-05-31
DK130772C (en) 1975-09-15
FR2049982A5 (en) 1971-03-26
IE34605L (en) 1970-12-05
DK130772B (en) 1975-04-14

Similar Documents

Publication Publication Date Title
GB1399985A (en) Hardening microcapsule walls
GB930422A (en) Process of the encapsulation of particulate material
JPS5515681A (en) Production of microcapsule
US2614940A (en) Ultraviolet light absorbing film
IE33818B1 (en) Production of oil-containing microcapsules
GB1274523A (en) Incorporating colour couplers into colour-photographic light-sensitive materials
IE34605B1 (en) Process for preparing oil-containing microcapsules
JPS53138726A (en) Photographic additives dispersion method
DE3684300D1 (en) METAL BROM CELL WITH ADDITIVELY CONTAINING ELECTROLYTE.
IE36857L (en) Oil-containing microcapsules.
GB1261904A (en) Improvements in cast metal pistons
GB1473425A (en) Method for processing silver dye bleach materials
ATE34407T1 (en) ENCAPSULATED CELLS, PROCESS FOR THEIR PRODUCTION AND THEIR USE.
KR840001530A (en) Dispersant Composition
GB1357419A (en) Process for microencapsulating hydrophobic oil droplets
Jayaram et al. Oxidimetric estimation of chloramphenicol with aromatic sulphonyl monohaloamines
GB1346812A (en) Photographic processing composition
JPS594431B2 (en) Method for stabilizing alkaline thiourea dioxide aqueous solution
JPS55127311A (en) Pack cosmetic
IE36703B1 (en) Process for producing microcapsules
ES485742A1 (en) Method of preparing a microcapsule dispersion
US2599518A (en) High contrast photographic developers
Kuwamura et al. Hydrolysis of p-nitrophenyl picolinate by N-aminimides having metal binding site and hydroxyl group in the presence of zinc (II) ion
JPS56105844A (en) Fast-curing aqueous mold wash for use of self-hardening organic casting mold
JPS5368702A (en) Preparation of organic silver carboxylates