DE1189050B - Verfahren zur Herstellung sehr kleiner Kapseln durch Phasentrennung einer Dispersion - Google Patents
Verfahren zur Herstellung sehr kleiner Kapseln durch Phasentrennung einer DispersionInfo
- Publication number
- DE1189050B DE1189050B DEN20716A DEN0020716A DE1189050B DE 1189050 B DE1189050 B DE 1189050B DE N20716 A DEN20716 A DE N20716A DE N0020716 A DEN0020716 A DE N0020716A DE 1189050 B DE1189050 B DE 1189050B
- Authority
- DE
- Germany
- Prior art keywords
- phase separation
- liquid
- capsules
- dispersion
- polymer
- 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
- 239000002775 capsule Substances 0.000 title claims description 30
- 238000005191 phase separation Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 8
- 239000006185 dispersion Substances 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000007788 liquid Substances 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 239000003209 petroleum derivative Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000001856 Ethyl cellulose Substances 0.000 claims description 5
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 5
- 229920001249 ethyl cellulose Polymers 0.000 claims description 5
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229920001600 hydrophobic polymer Polymers 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
- 229920002301 cellulose acetate Polymers 0.000 claims 1
- 239000000084 colloidal system Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 description 17
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 description 10
- 239000002245 particle Substances 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- NJSUFZNXBBXAAC-UHFFFAOYSA-N ethanol;toluene Chemical compound CCO.CC1=CC=CC=C1 NJSUFZNXBBXAAC-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- -1 Naphtha Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 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
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/08—Simple coacervation, i.e. addition of highly hydrophilic material
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Preparation (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6558260A | 1960-10-28 | 1960-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1189050B true DE1189050B (de) | 1965-03-18 |
Family
ID=22063711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN20716A Pending DE1189050B (de) | 1960-10-28 | 1961-10-24 | Verfahren zur Herstellung sehr kleiner Kapseln durch Phasentrennung einer Dispersion |
Country Status (7)
| Country | Link |
|---|---|
| BE (2) | BE609550A (enrdf_load_stackoverflow) |
| CH (1) | CH417536A (enrdf_load_stackoverflow) |
| DE (1) | DE1189050B (enrdf_load_stackoverflow) |
| DK (1) | DK105583C (enrdf_load_stackoverflow) |
| FR (1) | FR1304561A (enrdf_load_stackoverflow) |
| GB (1) | GB920866A (enrdf_load_stackoverflow) |
| NL (2) | NL270717A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EG10802A (en) * | 1971-02-19 | 1976-10-31 | Bayer Ag | A process for embeding veterinary substances and their protection against the influence of the gastric juice of the rumen |
| JPS5916821A (ja) * | 1982-07-16 | 1984-01-28 | Tanabe Seiyaku Co Ltd | 非凝集性マイクロカプセルの製法 |
| US20040235792A1 (en) * | 2001-01-20 | 2004-11-25 | Deadman John J | Serine protease inhibitors compromising a hydrogen-bond acceptor |
-
0
- NL NL129081D patent/NL129081C/xx active
- BE BE608763D patent/BE608763A/xx unknown
- NL NL270717D patent/NL270717A/xx unknown
- BE BE609550D patent/BE609550A/xx unknown
-
1961
- 1961-08-15 GB GB29392/61A patent/GB920866A/en not_active Expired
- 1961-10-13 DK DK407561AA patent/DK105583C/da active
- 1961-10-24 DE DEN20716A patent/DE1189050B/de active Pending
- 1961-10-27 FR FR877185A patent/FR1304561A/fr not_active Expired
- 1961-10-27 CH CH1254661A patent/CH417536A/fr unknown
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| CH417536A (fr) | 1966-07-31 |
| NL129081C (enrdf_load_stackoverflow) | |
| GB920866A (en) | 1963-03-13 |
| DK105583C (da) | 1966-10-17 |
| NL270717A (enrdf_load_stackoverflow) | |
| BE609550A (enrdf_load_stackoverflow) | |
| FR1304561A (fr) | 1962-09-21 |
| BE608763A (enrdf_load_stackoverflow) |
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