GB1198412A - Microencapsulation Process - Google Patents

Microencapsulation Process

Info

Publication number
GB1198412A
GB1198412A GB94569A GB94569A GB1198412A GB 1198412 A GB1198412 A GB 1198412A GB 94569 A GB94569 A GB 94569A GB 94569 A GB94569 A GB 94569A GB 1198412 A GB1198412 A GB 1198412A
Authority
GB
United Kingdom
Prior art keywords
poly
liquid
acid
microcapsules
jan
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
GB94569A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB1198412A publication Critical patent/GB1198412A/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

Abstract

1,198,412. Microcapsules. NATIONAL CASH REGISTER CO. 7 Jan., 1969 [29 Jan., 1968], No. 945/69. Heading B8C. [Also in Division C3] Microcapsules are produced by dispersing a solid or liquid core material in an aqueous solution of a complex of poly (vinyl alcohol) and a polyhydroxy aromatic material, inducing liquid-liquid phase separation of the complex, e.g. by addition of a water-soluble polymeric material such as gum arabic, an inorganic salt (sodium, ammonium and magnesium sulphates are mentioned) or combinations thereof, and consequent formation of liquid-walled capsules the walls of which are subsequently solidified and, optionally chemically hardened, e.g. with vanadyl sulphate. The poly (vinyl alcohol) used may include some poly (vinyl acetate) and suitable aromatic polyhydroxy compounds are catechol, resorcinol, 4-hexyl resorcinol, pyrogallol, phloroglucinol, gallic acid, tannic acid, hydroquinine, 2-hydroxy-hydroquinone, #-resorcylic acid, orcinol, bis-phenol A, digallic acid and dihydroxy naphthalenes.
GB94569A 1968-01-29 1969-01-07 Microencapsulation Process Expired GB1198412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70112868A 1968-01-29 1968-01-29

Publications (1)

Publication Number Publication Date
GB1198412A true GB1198412A (en) 1970-07-15

Family

ID=24816183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB94569A Expired GB1198412A (en) 1968-01-29 1969-01-07 Microencapsulation Process

Country Status (10)

Country Link
AT (1) AT291940B (en)
BE (1) BE727294A (en)
BR (1) BR6905912D0 (en)
CH (1) CH496472A (en)
DK (1) DK125742B (en)
FR (1) FR1596380A (en)
GB (1) GB1198412A (en)
NL (1) NL152178B (en)
NO (1) NO124519B (en)
SE (1) SE344686B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525520A (en) * 1983-03-28 1985-06-25 Kanzaki Paper Manufacturing Company, Ltd. Method of preparing microcapsules
US8034450B2 (en) 2005-01-21 2011-10-11 Ocean Nutrition Canada Limited Microcapsules and emulsions containing low bloom gelatin and methods of making and using thereof
US8900630B2 (en) 2002-11-04 2014-12-02 Dsm Nutritional Products Microcapsules having multiple shells and method for the preparation thereof
US8968872B2 (en) 2002-04-11 2015-03-03 Dsm Nutritional Products Ag Encapsulated agglomeration of microcapsules and method for the preparation thereof
US9056058B2 (en) 2006-06-05 2015-06-16 Dsm Nutritional Products Microcapsules with improved shells
US9968120B2 (en) 2006-05-17 2018-05-15 Dsm Nutritional Products Ag Homogenized formulations containing microcapsules and methods of making and using thereof
US10166196B2 (en) 2007-01-10 2019-01-01 Dsm Nutritional Products Ag Vegetarian microcapsules
EP3328901B1 (en) 2015-07-30 2019-09-11 Döhler GmbH Gum arabic from acacia seyal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777089A (en) * 1985-05-08 1988-10-11 Lion Corporation Microcapsule containing hydrous composition
US4908233A (en) * 1985-05-08 1990-03-13 Lion Corporation Production of microcapsules by simple coacervation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525520A (en) * 1983-03-28 1985-06-25 Kanzaki Paper Manufacturing Company, Ltd. Method of preparing microcapsules
US8968872B2 (en) 2002-04-11 2015-03-03 Dsm Nutritional Products Ag Encapsulated agglomeration of microcapsules and method for the preparation thereof
US8900630B2 (en) 2002-11-04 2014-12-02 Dsm Nutritional Products Microcapsules having multiple shells and method for the preparation thereof
US8034450B2 (en) 2005-01-21 2011-10-11 Ocean Nutrition Canada Limited Microcapsules and emulsions containing low bloom gelatin and methods of making and using thereof
US9968120B2 (en) 2006-05-17 2018-05-15 Dsm Nutritional Products Ag Homogenized formulations containing microcapsules and methods of making and using thereof
US9056058B2 (en) 2006-06-05 2015-06-16 Dsm Nutritional Products Microcapsules with improved shells
US10166196B2 (en) 2007-01-10 2019-01-01 Dsm Nutritional Products Ag Vegetarian microcapsules
EP3328901B1 (en) 2015-07-30 2019-09-11 Döhler GmbH Gum arabic from acacia seyal

Also Published As

Publication number Publication date
CH496472A (en) 1970-09-30
BE727294A (en) 1969-07-01
NL6901366A (en) 1969-07-31
BR6905912D0 (en) 1973-02-08
AT291940B (en) 1971-08-10
FR1596380A (en) 1970-06-15
NO124519B (en) 1972-05-02
NL152178B (en) 1977-02-15
DK125742B (en) 1973-04-30
SE344686B (en) 1972-05-02

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee