GB2017624A - Microcapsules - Google Patents

Microcapsules

Info

Publication number
GB2017624A
GB2017624A GB7907126A GB7907126A GB2017624A GB 2017624 A GB2017624 A GB 2017624A GB 7907126 A GB7907126 A GB 7907126A GB 7907126 A GB7907126 A GB 7907126A GB 2017624 A GB2017624 A GB 2017624A
Authority
GB
United Kingdom
Prior art keywords
microcapsules
contain
acidic
chloride
walls
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.)
Granted
Application number
GB7907126A
Other versions
GB2017624B (en
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.)
Kores Holding Zug AG
Original Assignee
Kores Holding Zug AG
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 Kores Holding Zug AG filed Critical Kores Holding Zug AG
Publication of GB2017624A publication Critical patent/GB2017624A/en
Application granted granted Critical
Publication of GB2017624B publication Critical patent/GB2017624B/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
    • B01J13/08—Simple coacervation, i.e. addition of highly hydrophilic material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Color Printing (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

Microcapsules for a pressure- sensitive recording material contain an aqueous solution at an acidic pH of a chloride of a metal having an atomic weight of from 50 to 66, and have walls which comprise alkyl cellulose, the alkyl groups of which contain from 2 to 10 carbon atoms.
GB7907126A 1978-03-03 1979-02-28 Microcapsules Expired GB2017624B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT152478A AT355053B (en) 1978-03-03 1978-03-03 MICROCAPSULES FOR RECORDING MATERIALS AND METHOD FOR THE PRODUCTION THEREOF

Publications (2)

Publication Number Publication Date
GB2017624A true GB2017624A (en) 1979-10-10
GB2017624B GB2017624B (en) 1982-07-07

Family

ID=3515445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907126A Expired GB2017624B (en) 1978-03-03 1979-02-28 Microcapsules

Country Status (6)

Country Link
JP (1) JPS54128982A (en)
AT (1) AT355053B (en)
BE (1) BE874481A (en)
DE (1) DE7905795U1 (en)
FR (1) FR2418671A1 (en)
GB (1) GB2017624B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940588A (en) * 1984-10-30 1990-07-10 Elan Corporation Controlled release powder and process for its preparation
US8137684B2 (en) 1996-10-01 2012-03-20 Abraxis Bioscience, Llc Formulations of pharmacological agents, methods for the preparation thereof and methods for the use thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103891A (en) * 1980-12-19 1982-06-28 Fuji Photo Film Co Ltd Microcapsule dispersing liquid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT631615A (en) * 1960-02-26
DE1444405C3 (en) * 1961-01-30 1975-01-16 International Business Machines Corp., Armonk, N.Y. (V.St.A.) Process for encapsulating polar solutions in polymeric material
AT335477B (en) * 1975-02-25 1977-03-10 Koreska Ges Mbh W PRESSURE SENSITIVE RECORDING MATERIAL
AT340954B (en) * 1975-06-06 1978-01-10 Koreska Ges Mbh W TRANSFER MATERIAL
AT346370B (en) * 1976-06-23 1978-11-10 Koreska Ges Mbh W RECORDING MATERIAL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940588A (en) * 1984-10-30 1990-07-10 Elan Corporation Controlled release powder and process for its preparation
US4952402A (en) * 1984-10-30 1990-08-28 Elan Corporation, P.L.C. Controlled release powder and process for its preparation
US8137684B2 (en) 1996-10-01 2012-03-20 Abraxis Bioscience, Llc Formulations of pharmacological agents, methods for the preparation thereof and methods for the use thereof

Also Published As

Publication number Publication date
DE7905795U1 (en) 1979-06-13
AT355053B (en) 1980-02-11
FR2418671A1 (en) 1979-09-28
GB2017624B (en) 1982-07-07
BE874481A (en) 1979-08-27
JPS54128982A (en) 1979-10-05
ATA152478A (en) 1979-07-15

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Legal Events

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