GB1375118A - - Google Patents
Info
- Publication number
- GB1375118A GB1375118A GB1807472A GB1807472A GB1375118A GB 1375118 A GB1375118 A GB 1375118A GB 1807472 A GB1807472 A GB 1807472A GB 1807472 A GB1807472 A GB 1807472A GB 1375118 A GB1375118 A GB 1375118A
- Authority
- GB
- United Kingdom
- Prior art keywords
- organic solvent
- water
- microcapsules
- april
- weight
- 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
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
- B01J13/12—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution
- B01J13/125—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution by evaporation of the solvent
-
- 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
Abstract
1375118 Microcapsules BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1972 [23 April 1971] 18074/72 Heading B8C Microcapsules having walls composed of an optionally cross-linked copolymer of: (a) 3-80% by weight of a monomer selected from: vinyl pyrrolidone, acrylamide, acrylic acid, methacrylic acid and 2-sulphoethyl methacrylate; (b) 97-20% of methyl methacrylate; and (c) one or more acetyl acetates of half esters of aliphatic diols containing 2-8 C atoms with olefinically unsaturated C 3-5 carboxylic acids (this component being present as polymerized units in an amount not exceeding 70% by weight) are made by dispersing a mixture of the core material, the polymeric wall-forming material, a volatile, water-immiscible organic solvent therefor, and a water-miscible organic solvent (the solvents having boiling points below 100‹ C.) in an aqueous carrier liquid and the wall-forming material is separated from the dispersed phase at the interface by evaporation of the water-immiscible organic solvent. The capsule walls may be subsequently subjected to chemical curing after removal of the waterimmiscible solvent. The core material may be an oil (animal, vegetable or synthetic) in which may be dissolved or dispersed substances such as polymers, adhesives, dyes, perfumes, inks, fuels, initiators or plasticizers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712119933 DE2119933C3 (en) | 1971-04-23 | Process for the production of microcapsules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1375118A true GB1375118A (en) | 1974-11-27 |
Family
ID=5805711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1807472A Expired GB1375118A (en) | 1971-04-23 | 1972-04-19 |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS531229B1 (en) |
| AR (1) | AR193861A1 (en) |
| AT (1) | AT320594B (en) |
| AU (1) | AU473398B2 (en) |
| BE (1) | BE782476A (en) |
| CA (1) | CA968641A (en) |
| CH (1) | CH583067A5 (en) |
| CS (1) | CS172945B2 (en) |
| DD (1) | DD100883A5 (en) |
| DK (1) | DK131327B (en) |
| ES (1) | ES402010A1 (en) |
| FR (1) | FR2133967B1 (en) |
| GB (1) | GB1375118A (en) |
| IT (1) | IT954471B (en) |
| NL (1) | NL7205355A (en) |
| SE (1) | SE379153B (en) |
| SU (1) | SU479275A3 (en) |
| ZA (1) | ZA722662B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU607532B2 (en) * | 1987-08-26 | 1991-03-07 | Rohm And Haas Company | Process for microencapsulation, uses of polymers prepared by said process, and compositions containing polymers prepared by said process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6090925A (en) | 1993-03-09 | 2000-07-18 | Epic Therapeutics, Inc. | Macromolecular microparticles and methods of production and use |
| US5981719A (en) | 1993-03-09 | 1999-11-09 | Epic Therapeutics, Inc. | Macromolecular microparticles and methods of production and use |
| RU2524388C1 (en) * | 2013-02-26 | 2014-07-27 | Открытое акционерное общество "Федеральный научно-производственный центр "Алтай" | Method of producing gas-generating element for low-temperature gas generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2800457A (en) * | 1953-06-30 | 1957-07-23 | Ncr Co | Oil-containing microscopic capsules and method of making them |
| FR1298313A (en) * | 1959-12-21 | 1962-07-13 | Upjohn Co | Liquid-liquid phase separation process for coating extremely fine particles |
| US3418250A (en) * | 1965-10-23 | 1968-12-24 | Us Plywood Champ Papers Inc | Microcapsules, process for their formation and transfer sheet record material coated therewith |
-
1972
- 1972-03-28 CH CH459272A patent/CH583067A5/xx not_active IP Right Cessation
- 1972-04-18 CS CS722604A patent/CS172945B2/en unknown
- 1972-04-19 ZA ZA722662A patent/ZA722662B/en unknown
- 1972-04-19 GB GB1807472A patent/GB1375118A/en not_active Expired
- 1972-04-19 SU SU1914973A patent/SU479275A3/en active
- 1972-04-20 IT IT49790/72A patent/IT954471B/en active
- 1972-04-20 FR FR7214016A patent/FR2133967B1/fr not_active Expired
- 1972-04-20 JP JP3922972A patent/JPS531229B1/ja active Pending
- 1972-04-20 NL NL7205355A patent/NL7205355A/xx not_active Application Discontinuation
- 1972-04-20 SE SE7205185A patent/SE379153B/xx unknown
- 1972-04-21 DD DD162484A patent/DD100883A5/xx unknown
- 1972-04-21 AR AR241604A patent/AR193861A1/en active
- 1972-04-21 AT AT353172A patent/AT320594B/en not_active IP Right Cessation
- 1972-04-21 BE BE782476A patent/BE782476A/en unknown
- 1972-04-21 DK DK196372AA patent/DK131327B/en unknown
- 1972-04-21 AU AU41451/72A patent/AU473398B2/en not_active Expired
- 1972-04-21 CA CA140,314A patent/CA968641A/en not_active Expired
- 1972-04-22 ES ES402010A patent/ES402010A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU607532B2 (en) * | 1987-08-26 | 1991-03-07 | Rohm And Haas Company | Process for microencapsulation, uses of polymers prepared by said process, and compositions containing polymers prepared by said process |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA722662B (en) | 1973-02-28 |
| BE782476A (en) | 1972-10-23 |
| FR2133967A1 (en) | 1972-12-01 |
| SU479275A3 (en) | 1975-07-30 |
| AR193861A1 (en) | 1973-05-31 |
| AU4145172A (en) | 1973-10-25 |
| IT954471B (en) | 1973-08-30 |
| DD100883A5 (en) | 1973-10-12 |
| JPS531229B1 (en) | 1978-01-17 |
| FR2133967B1 (en) | 1977-07-22 |
| AT320594B (en) | 1975-02-25 |
| DE2119933B2 (en) | 1976-07-22 |
| DK131327B (en) | 1975-06-30 |
| AU473398B2 (en) | 1976-06-24 |
| ES402010A1 (en) | 1975-03-01 |
| SE379153B (en) | 1975-09-29 |
| CA968641A (en) | 1975-06-03 |
| CH583067A5 (en) | 1976-12-31 |
| DE2119933A1 (en) | 1972-11-09 |
| NL7205355A (en) | 1972-10-25 |
| CS172945B2 (en) | 1977-01-28 |
| DK131327C (en) | 1975-11-24 |
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|---|---|---|
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |