JPS5784740A - Preparation of microcapsule - Google Patents
Preparation of microcapsuleInfo
- Publication number
- JPS5784740A JPS5784740A JP55160756A JP16075680A JPS5784740A JP S5784740 A JPS5784740 A JP S5784740A JP 55160756 A JP55160756 A JP 55160756A JP 16075680 A JP16075680 A JP 16075680A JP S5784740 A JPS5784740 A JP S5784740A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- oil
- particle size
- type emulsion
- water type
- 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.)
- Pending
Links
- 239000003094 microcapsule Substances 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 239000000839 emulsion Substances 0.000 abstract 4
- 239000002245 particle Substances 0.000 abstract 3
- 239000000178 monomer Substances 0.000 abstract 2
- 238000010008 shearing Methods 0.000 abstract 2
- 230000004888 barrier function Effects 0.000 abstract 1
- 239000002775 capsule Substances 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
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
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
PURPOSE:To obtain a microcapsule with a uniform particle size from an oil in water type emulsion by passing a mixed liquid of an oily liquid and a solution of a water soluble monomer or the like through a tubular mixer having a shearing means provided thereto to form the oil in water type emulsion. CONSTITUTION:A mixed liquid 11 of an oily liquid to be enclosed in a capsule and a solution of a water soluble monomer or polymer is entered into a holding tank 6. Only a valve 13c is closed and a constant-volume pump 7 is operated. The mixed liquid 11 is passed through a tubular mixer 8 having a barrier plate 10 suitable for shearing the liquid provided in an inside thereof and returned to the holding tank 6 from a pipe 12c. An average flow speed of the liquid in the tubular mixer 8 is adjusted 10-25m/sec and an average recirculation number to 1-50 times and, thereby, an oil in water type emulsion having an appropriate particle size and narrow particle size distribution is obtained. The resulting emulsion is transferred to a wall film forming treatment tank 9 through a valve 13c and a wall film is formed therein to obtain a microcapsule dispersion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55160756A JPS5784740A (en) | 1980-11-17 | 1980-11-17 | Preparation of microcapsule |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55160756A JPS5784740A (en) | 1980-11-17 | 1980-11-17 | Preparation of microcapsule |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5784740A true JPS5784740A (en) | 1982-05-27 |
Family
ID=15721779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55160756A Pending JPS5784740A (en) | 1980-11-17 | 1980-11-17 | Preparation of microcapsule |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5784740A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4454083A (en) * | 1981-12-21 | 1984-06-12 | Appleton Papers Inc. | Continuous microencapsulation |
JPH03501940A (en) * | 1987-09-28 | 1991-05-09 | レッデング・ジュニア,ブルース・ケイ | Apparatus and method for microcapsule preparation |
US5558820A (en) * | 1991-02-13 | 1996-09-24 | Fuji Photo Film Co., Ltd. | Process for preparing microcapsules |
CN103769017A (en) * | 2012-10-23 | 2014-05-07 | 中国科学院理化技术研究所 | Microencapsulation method of water-soluble inorganic salt |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49121787A (en) * | 1973-03-09 | 1974-11-21 | ||
JPS60191095A (en) * | 1984-03-07 | 1985-09-28 | Toshiba Corp | Method and device for manufacturing silicon single crystal |
-
1980
- 1980-11-17 JP JP55160756A patent/JPS5784740A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49121787A (en) * | 1973-03-09 | 1974-11-21 | ||
JPS60191095A (en) * | 1984-03-07 | 1985-09-28 | Toshiba Corp | Method and device for manufacturing silicon single crystal |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4454083A (en) * | 1981-12-21 | 1984-06-12 | Appleton Papers Inc. | Continuous microencapsulation |
JPH03501940A (en) * | 1987-09-28 | 1991-05-09 | レッデング・ジュニア,ブルース・ケイ | Apparatus and method for microcapsule preparation |
US5558820A (en) * | 1991-02-13 | 1996-09-24 | Fuji Photo Film Co., Ltd. | Process for preparing microcapsules |
CN103769017A (en) * | 2012-10-23 | 2014-05-07 | 中国科学院理化技术研究所 | Microencapsulation method of water-soluble inorganic salt |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU572040B2 (en) | Unitary heat exchanger and debubbler | |
EP0134890B1 (en) | Device for the preparation of high quality solid-liquid mixtures up to the colloid system or up to coagulation for the treatment of water or to introduce gases into liquids | |
FR2452312A1 (en) | DOSING DEVICE, MIXER, EMULSIFIER FOR NON-MIXABLE LIQUIDS FOR FUELS | |
FR2505204B1 (en) | DEVICE FOR MIXING FLUIDS IN CIRCULATION | |
JPS5784740A (en) | Preparation of microcapsule | |
KR910001797Y1 (en) | Mixing apparatus | |
JPS55116429A (en) | Method and apparatus for mixing and spraying two atomized liquids | |
Wood | Horizontal two-dimensional density current | |
JPS575690A (en) | Circulation device for culture medium in cultivation tank | |
JPS57156926A (en) | Device for measuring iron core | |
Wood | Mixing characteristics of a bounded turbulent jet | |
JPH037415B2 (en) | ||
US1519027A (en) | Apparatus for transforming liquids into alpha mist | |
JPS551848A (en) | Water treatmtne apparatus | |
JPS572394A (en) | Equipment for emulsion fuel production | |
JPS5735928A (en) | Method and apparatus for agitating water-in-oil type emulsion | |
JPS56113334A (en) | Agitator for preparation of emulsion | |
JPS5650996A (en) | Apparatus for producing emulsified fuel oil | |
JPS54101100A (en) | Processing method of radioactive waste | |
JPS577236A (en) | Stirred mixing tank | |
DE3505707A1 (en) | Arrangement for the utilisation of the heat energy generated by a sauna oven | |
JPS5461476A (en) | Discharger for viscous fluid | |
CH381988A (en) | Drive element for a bar magnet designed as a stirrer for mixing liquids in film developing boxes | |
SU1223984A1 (en) | Mixer | |
JPS5573341A (en) | Liquid circulating apparatus |