EP 2890487 A1 20150708 - FINELY DIVIDED PARTICLES OF CORE-SHELL STRUCTURE
Title (en)
FINELY DIVIDED PARTICLES OF CORE-SHELL STRUCTURE
Title (de)
FEINTEILIGE PARTIKEL MIT KERN-SCHALE-STRUKTUR
Title (fr)
MICROPARTICULES À STRUCTURE C UR/ENVELOPPE
Publication
Application
Priority
- EP 12182394 A 20120830
- EP 2013067850 W 20130828
- EP 13756867 A 20130828
Abstract (en)
[origin: WO2014033187A1] The invention provides a process for producing finely divided particles of core-shell structure where the shell comprises at least one polymer, said process comprising the steps of: i. providing a first aerosol stream of droplets in a carrier gas stream wherein the droplets comprise at least one monomer and charging droplets of the first aerosol with electric charge; ii. providing a second aerosol stream of solid particles in a carrier gas stream and charging the solid particles of the aerosol with an electric charge opposite to the electric charge on the droplets of the first aerosol stream; iii. mixing the first aerosol stream with the second aerosol stream to form a mixed aerosol stream; iv. initiating a polymerization of the monomers by irradiating this mixed aerosol stream with electromagnetic radiation. The invention also provides the finely divided particles of core-shell structure which are obtainable by this process.
IPC 8 full level
B01J 13/18 (2006.01); A01N 25/28 (2006.01); A61K 9/50 (2006.01); C09B 67/00 (2006.01)
CPC (source: EP)
B01J 13/185 (2013.01); C09B 67/0013 (2013.01)
Citation (search report)
See references of WO 2014033187A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014033187 A1 20140306; CA 2883037 A1 20140306; CN 104768639 A 20150708; EP 2890487 A1 20150708; JP 2015530434 A 20151015
DOCDB simple family (application)
EP 2013067850 W 20130828; CA 2883037 A 20130828; CN 201380052389 A 20130828; EP 13756867 A 20130828; JP 2015529010 A 20130828