CA1094402A - Discrete polyurea microcapsules - Google Patents
Discrete polyurea microcapsulesInfo
- Publication number
- CA1094402A CA1094402A CA263,716A CA263716A CA1094402A CA 1094402 A CA1094402 A CA 1094402A CA 263716 A CA263716 A CA 263716A CA 1094402 A CA1094402 A CA 1094402A
- Authority
- CA
- Canada
- Prior art keywords
- solvent
- polyurea
- water
- wall
- 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.)
- 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
- B01J13/14—Polymerisation; cross-linking
- B01J13/16—Interfacial polymerisation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5005—Wall or coating material
- A61K9/5021—Organic macromolecular compounds
- A61K9/5031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Dispersion Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62740075A | 1975-10-30 | 1975-10-30 | |
| US627,400 | 1975-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1094402A true CA1094402A (en) | 1981-01-27 |
Family
ID=24514487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA263,716A Expired CA1094402A (en) | 1975-10-30 | 1976-10-19 | Discrete polyurea microcapsules |
Country Status (31)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3039117A1 (de) * | 1980-10-16 | 1982-05-13 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von mikrokapseln |
| DE3346601C2 (de) * | 1983-12-23 | 1986-06-12 | Feldmühle AG, 4000 Düsseldorf | Mikrokapseln, Verfahren zu ihrer Herstellung und ihre Verwendung in druckempfindlichen kohlefreien Durchschreibepapieren |
| AR240875A1 (es) * | 1984-01-09 | 1991-03-27 | Stauffer Chemical Co | Procedimiento para producir capsulas de poliurea de dimensiones multiples que contienen un material inmiscible en agua en su interior y las capsulas resultantes |
| LT1840145T (lt) * | 2006-03-30 | 2018-02-26 | Fmc Corporation | Acetileno karbamido dariniai - polikarbamido polimerai ir mikrokapsulės ir kompozicijos jų kontroliuojamam atpalaidavimui |
| BE1019834A4 (nl) | 2011-02-22 | 2013-01-08 | Geosea N V | Inrichting voor het vervaardigen van een fundering voor een zich op hoogte bevindende massa, bijbehorende werkwijze en samenstel van de inrichting en een opvijzelbaar platform. |
| RU2496483C1 (ru) * | 2012-03-20 | 2013-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗ ГУ) | Способ получения микрокапсул |
| RU2482849C1 (ru) * | 2012-04-09 | 2013-05-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗ ГУ) | Способ получения микрокапсул лекарственных препаратов группы цефалоспоринов в конжаковой камеди в диэтиловом эфире |
| CN103331133B (zh) * | 2013-06-07 | 2015-06-24 | 深圳大学 | 一种以聚脲为壁材的环氧微胶囊及其制备方法 |
| RU2556652C1 (ru) * | 2013-12-24 | 2015-07-10 | Александр Александрович Кролевец | Способ инкапсуляции унаби |
| RU2619329C2 (ru) * | 2014-10-06 | 2017-05-15 | Александр Александрович Кролевец | Способ получения нанокапсул аспирина в альгинате натрия |
| RU2595834C1 (ru) * | 2015-04-14 | 2016-08-27 | Александр Александрович Кролевец | Способ получения нанокапсул экстракта зеленого чая |
-
1976
- 1976-10-13 GB GB42518/76A patent/GB1566297A/en not_active Expired
- 1976-10-19 CA CA263,716A patent/CA1094402A/en not_active Expired
- 1976-10-26 PT PT65761A patent/PT65761B/pt unknown
- 1976-10-26 BR BR7607188A patent/BR7607188A/pt unknown
- 1976-10-26 MX MX166789A patent/MX146759A/es unknown
- 1976-10-27 YU YU02628/76A patent/YU262876A/xx unknown
- 1976-10-27 IN IN1944/CAL/76A patent/IN145979B/en unknown
- 1976-10-27 DE DE19762648562 patent/DE2648562A1/de not_active Withdrawn
- 1976-10-27 CH CH1356776A patent/CH628525A5/de not_active IP Right Cessation
- 1976-10-28 CS CS766965A patent/CS197280B2/cs unknown
- 1976-10-28 SE SE7611999A patent/SE7611999L/ not_active Application Discontinuation
- 1976-10-28 AT AT801876A patent/AT353750B/de not_active IP Right Cessation
- 1976-10-28 DD DD7600195505A patent/DD129032A5/xx unknown
- 1976-10-28 SU SU762414902A patent/SU707510A3/ru active
- 1976-10-28 DK DK487976A patent/DK487976A/da not_active Application Discontinuation
- 1976-10-28 FR FR7632534A patent/FR2329340A1/fr active Granted
- 1976-10-29 PH PH19071A patent/PH14926A/en unknown
- 1976-10-29 AR AR265287A patent/AR210909A1/es active
- 1976-10-29 PL PL1976193358A patent/PL118818B1/pl unknown
- 1976-10-29 HU HU76SA2986A patent/HU173923B/hu unknown
- 1976-10-29 GR GR52031A patent/GR68264B/el unknown
- 1976-10-29 ZA ZA766492A patent/ZA766492B/xx unknown
- 1976-10-29 BE BE7000915A patent/BE847878A/xx not_active IP Right Cessation
- 1976-10-29 NZ NZ182472A patent/NZ182472A/xx unknown
- 1976-10-29 AU AU19146/76A patent/AU510355B2/en not_active Expired
- 1976-10-29 NL NL7612022A patent/NL7612022A/xx not_active Application Discontinuation
- 1976-10-29 NO NO763696A patent/NO148703C/no unknown
- 1976-10-29 ES ES452836A patent/ES452836A1/es not_active Expired
- 1976-10-29 IT IT51958/76A patent/IT1066331B/it active
- 1976-10-30 JP JP51131174A patent/JPS5254687A/ja active Pending
- 1976-10-30 RO RO7688270A patent/RO69910A/ro unknown
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |