FR2431323A2 - Procede de preparation de microcapsules contenant une huile - Google Patents
Procede de preparation de microcapsules contenant une huileInfo
- Publication number
- FR2431323A2 FR2431323A2 FR7918861A FR7918861A FR2431323A2 FR 2431323 A2 FR2431323 A2 FR 2431323A2 FR 7918861 A FR7918861 A FR 7918861A FR 7918861 A FR7918861 A FR 7918861A FR 2431323 A2 FR2431323 A2 FR 2431323A2
- Authority
- FR
- France
- Prior art keywords
- preparation
- oil
- relates
- containing microcapsules
- solution
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Color Printing (AREA)
Abstract
L'invention concerne la préparation de microcapsules contenant une huile. Elle concerne un procédé qui consiste à former une solution aqueuse d'au moins deux matières colloïdales hydrophiles ayant des charges électriques opposées. Des gouttelettes d'huile sont dispersées dans cette solution. Ces gouttelettes contiennent au moins un isocyanate polyvalent Le procédé consiste à provoquer ensuite une coacervation du système aqueux, à une température relativement élevée, et à refroidir la suspension de coacervat, sous agitation, dans des conditions particulières. Domaine application : préparation de papier autocopiant, de papier de copie sensible à la pression, etc.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8959578A JPS5515671A (en) | 1978-07-22 | 1978-07-22 | Production of microcapsule |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2431323A2 true FR2431323A2 (fr) | 1980-02-15 |
FR2431323B2 FR2431323B2 (fr) | 1984-01-13 |
Family
ID=13975125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7918861A Granted FR2431323A2 (fr) | 1978-07-22 | 1979-07-20 | Procede de preparation de microcapsules contenant une huile |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5515671A (fr) |
DE (1) | DE2929843A1 (fr) |
FR (1) | FR2431323A2 (fr) |
GB (1) | GB2029791B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4212239A1 (fr) | 2022-01-14 | 2023-07-19 | International Flavors & Fragrances Inc. | Microcapsules de prépolymère biodégradables |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1283004A (fr) * | 1960-03-10 | 1962-01-27 | Ncr Co | Produit capsulaire et son procédé de fabrication |
US3041289A (en) * | 1959-01-02 | 1962-06-26 | Ncr Co | Method of making walled clusters of capsules |
GB905621A (en) * | 1960-05-16 | 1962-09-12 | Ncr Co | Process for the manufacture of capsular units comprising quick-drying inks |
DE2244484A1 (de) * | 1971-09-13 | 1973-03-22 | Fuji Photo Film Co Ltd | Verfahren zur herstellung von mikrokapseln |
FR2267150A1 (fr) * | 1974-04-10 | 1975-11-07 | Kanzaki Paper Mfg Co Ltd |
-
1978
- 1978-07-22 JP JP8959578A patent/JPS5515671A/ja active Pending
-
1979
- 1979-07-20 FR FR7918861A patent/FR2431323A2/fr active Granted
- 1979-07-20 GB GB7925480A patent/GB2029791B/en not_active Expired
- 1979-07-23 DE DE19792929843 patent/DE2929843A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3041289A (en) * | 1959-01-02 | 1962-06-26 | Ncr Co | Method of making walled clusters of capsules |
FR1283004A (fr) * | 1960-03-10 | 1962-01-27 | Ncr Co | Produit capsulaire et son procédé de fabrication |
GB905621A (en) * | 1960-05-16 | 1962-09-12 | Ncr Co | Process for the manufacture of capsular units comprising quick-drying inks |
DE2244484A1 (de) * | 1971-09-13 | 1973-03-22 | Fuji Photo Film Co Ltd | Verfahren zur herstellung von mikrokapseln |
US3897361A (en) * | 1971-09-13 | 1975-07-29 | Fuji Photo Film Co Ltd | Process for producing microcapsules |
FR2267150A1 (fr) * | 1974-04-10 | 1975-11-07 | Kanzaki Paper Mfg Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
FR2431323B2 (fr) | 1984-01-13 |
GB2029791B (en) | 1982-12-01 |
JPS5515671A (en) | 1980-02-02 |
DE2929843A1 (de) | 1980-02-07 |
GB2029791A (en) | 1980-03-26 |
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