发明名称 |
METHOD OF PRODUCING MICROCAPSULES OF HETEROCYCLIC COMPOUNDS OF TRIAZINE SERIES |
摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing metribuzin microcapsules. Said method is characterised by that polyvinyl alcohol solution is mixed with metribuzin and an E472c preparation as an emulsifier; the obtained mixture is stirred until components of the reaction mixture dissolve and after formation of a transparent solution, ethyl acetate is slowly added in droplets as a first precipitant and then isopropanol as a second precipitant; the obtained microcapsule suspension is settled for 1 minute and then filtered, washed with isopropanol and dried.EFFECT: invention provides a simple process of producing microcapsules with a water-soluble envelope and increases mass output.3 ex |
申请公布号 |
RU2552932(C2) |
申请公布日期 |
2015.06.10 |
申请号 |
RU20130122329 |
申请日期 |
2013.05.14 |
申请人 |
KROLEVETS ALEKSANDR ALEKSANDROVICH;BYKOVSKAJA EKATERINA EVGEN'EVNA |
发明人 |
BYKOVSKAJA EKATERINA EVGEN'EVNA;KROLEVETS ALEKSANDR ALEKSANDROVICH |
分类号 |
A61K31/53;A61J3/07;A61K9/50;A61K47/32;B01J13/02 |
主分类号 |
A61K31/53 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|