ZA892910B - A process for the production of microcapsules - Google Patents

A process for the production of microcapsules

Info

Publication number
ZA892910B
ZA892910B ZA892910A ZA892910A ZA892910B ZA 892910 B ZA892910 B ZA 892910B ZA 892910 A ZA892910 A ZA 892910A ZA 892910 A ZA892910 A ZA 892910A ZA 892910 B ZA892910 B ZA 892910B
Authority
ZA
South Africa
Prior art keywords
cmc
microcapsules
gelatin
chosen
maleic anhydride
Prior art date
Application number
ZA892910A
Other languages
English (en)
Inventor
Brian North
North Brian
Original Assignee
Wiggins Teape Group 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 Wiggins Teape Group Ltd filed Critical Wiggins Teape Group Ltd
Publication of ZA892910B publication Critical patent/ZA892910B/xx

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
    • 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]
    • 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]
    • Y10T428/2985—Solid-walled microcapsule from synthetic polymer
    • Y10T428/2987—Addition polymer from unsaturated monomers only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Color Printing (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
ZA892910A 1988-04-23 1989-04-20 A process for the production of microcapsules ZA892910B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888809648A GB8809648D0 (en) 1988-04-23 1988-04-23 Production of microcapsules

Publications (1)

Publication Number Publication Date
ZA892910B true ZA892910B (en) 1989-12-27

Family

ID=10635735

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA892910A ZA892910B (en) 1988-04-23 1989-04-20 A process for the production of microcapsules

Country Status (11)

Country Link
US (1) US5035844A (xx)
EP (1) EP0339866B1 (xx)
JP (1) JPH0214737A (xx)
AT (1) ATE63475T1 (xx)
AU (1) AU3324189A (xx)
CA (1) CA1301563C (xx)
DE (1) DE68900081D1 (xx)
ES (1) ES2021892B3 (xx)
FI (1) FI891871A (xx)
GB (1) GB8809648D0 (xx)
ZA (1) ZA892910B (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2718059B1 (fr) 1994-03-31 1996-06-28 Copigraph Procédé de production de microcapsules à fort taux d'extrait sec contenant un liquide hydrophobe, microcapsules obtenues par ledit procédé et procédé d'obtention d'un papier sensible à la pression à l'aide de ces microcapsules.
FR2723032B1 (fr) 1994-07-26 1996-11-22 Copigraph Sa Nouveau solvant organique pour microcapsules utiles notamment pour la realisation de papier autocopiant sensible a la pression et papier sensible a lapression revetu de telles microcapsules
FR2727633A1 (fr) 1994-12-02 1996-06-07 Copigraph Microcapsules contenant a titre de solvant un derive terpenique ou d'acide abietique et papiers sensibles a la pression revetus de ces microcapsules
FR2839658B1 (fr) * 2002-05-17 2004-08-06 Protex Nouveau procede de preparation de microcapsules a base de gelatine, contenant un liquide hydrophobe et microcapsules obtenues
DE102004013977A1 (de) * 2004-03-19 2005-10-06 Cavis Microcaps Gmbh Technischer Prozess sowie Anlage zur Herstellung von Koazervatkapseln
CN102649037B (zh) * 2011-05-04 2014-06-11 京东方科技集团股份有限公司 一种电子墨水微胶囊及其制作方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL246986A (xx) * 1959-01-02 1900-01-01
US3510435A (en) * 1967-11-17 1970-05-05 Ncr Co Method of producing opaque encapsulated materials
GB1442175A (en) * 1973-06-28 1976-07-07 Pozuelo Daunier L J M De Encapsulation process
JPS5113387A (xx) * 1974-07-24 1976-02-02 Fuji Photo Film Co Ltd
JPS5833011B2 (ja) * 1977-01-28 1983-07-16 神崎製紙株式会社 マイクロカプセルの製造方法
JPS53125273A (en) * 1977-04-07 1978-11-01 Mitsubishi Paper Mills Ltd Manufacture of monoonucleus microcapsule
GB1573361A (en) * 1977-07-04 1980-08-20 Carbon Paper Co Ltd Metho of making microcapsules
US4222891A (en) * 1977-08-17 1980-09-16 Kanzaki Paper Mfg. Co., Ltd. Method of making oil-containing microcapsules
US4394287A (en) * 1981-04-10 1983-07-19 Eurand America, Inc. Incorporation of finely divided additives at the surface of microcapsule walls

Also Published As

Publication number Publication date
AU3324189A (en) 1989-10-26
EP0339866B1 (en) 1991-05-15
EP0339866A3 (en) 1989-11-29
FI891871A0 (fi) 1989-04-19
FI891871A (fi) 1989-10-24
DE68900081D1 (de) 1991-06-20
ATE63475T1 (de) 1991-06-15
EP0339866A2 (en) 1989-11-02
JPH0214737A (ja) 1990-01-18
ES2021892B3 (es) 1991-11-16
CA1301563C (en) 1992-05-26
US5035844A (en) 1991-07-30
GB8809648D0 (en) 1988-05-25

Similar Documents

Publication Publication Date Title
CA2141519A1 (en) Paper containing alkaline sizing agents with improved conversion capability
CA2086030A1 (en) Enhancement of paper dry strength by anionic and cationic guar combination
AU3788489A (en) Thickening agent to modify rheological properties of aqueous compositions thickened and/or containing white or coloured pigments
US4880870A (en) Polymer granulate, a process for its preparation, and its use
US3428582A (en) Interpolymer aqueous dispersions and paper coated therewith
AU1670592A (en) Polymer mixture for producing foils
GB8809648D0 (en) Production of microcapsules
FI85739B (fi) Kobindemedel foer belaeggningsmassor.
CA2180976A1 (en) Deinking processes and novel polymers for use in these
US3261798A (en) Paper treating solution of an alphaolefin/maleic anhydride copolymer and a bisulfite
US2610136A (en) Manufacture of corrugated paperboard
ZA928724B (en) Coating material
US3436309A (en) Modifying starches
EP0426987B1 (en) Rapidly immobilizing paper coating compositions
Baier et al. Citrus Pectates. Properties, Manufacture, and Uses
YU46704B (sh) Postupak za odstranjivanje štamparske boje starih hartija
Hofreiter et al. Gamma‐irradiated corn starches. Alkaline dispersions for surface‐sizing paper
EP0246743A3 (en) Blockout materials for printing screens
ID22210A (id) Pembuatan bahan sutera nabati
NO150645B (no) Anionisk papiroverflatelimingsmiddel og anvendelse av dette ved overflateliming av papir
US2498207A (en) Paper coating composition and coated paper
US2849326A (en) Paper coating composition and process of making it
DE3160517D1 (en) Hydrophobic agent for flat cellulosic substrate, process for its manufacture and its use
EP0396745A4 (en) Propylene-ethylene copolymer composition and process for its production
GB1319371A (en) Paper products