EP 0586541 A4 19940706 - PROCESS FOR DRYING MICROSPHERES
Title (en)
PROCESS FOR DRYING MICROSPHERES
Publication
Application
Priority
US 70554591 A 19910524
Abstract (en)
[origin: WO9220465A1] Microsphere beads (2) are mixed with a surface barrier liquid or mixture of such a liquid with a solid effective to prevent agglomeration and surface bonding of the microspheres. By the control of the application of heat and balancing temperature and active mixing, removal of water (3) from the microspheres (2) is achieved. The surface barrier liquid or mixture of such a liquid with a solid in the present invention is any one of a wide diversity of materials which prevent the agglomeration of the microspheres during the process. Suitable materials include plasticizers, diluents, extenders, monomers and oligomers, and the like.
IPC 1-7
IPC 8 full level
C08J 9/16 (2006.01); B01J 13/20 (2006.01); B01J 13/22 (2006.01); C08J 9/22 (2006.01); C08J 9/32 (2006.01); C09D 7/12 (2006.01)
CPC (source: EP)
B01J 13/206 (2013.01); B01J 13/22 (2013.01)
Citation (search report)
- [A] GB 929704 A 19630626 - SHAWINIGAN RESINS CORP
- [A] US 3784648 A 19740108 - BERGMEISTER E, et al
- See references of WO 9220465A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE
DOCDB simple family (publication)
WO 9220465 A1 19921126; AU 2142192 A 19921230; AU 658430 B2 19950413; CA 2109728 A1 19921126; EP 0586541 A1 19940316; EP 0586541 A4 19940706; JP 3140463 B2 20010305; JP H06509125 A 19941013; KR 100216886 B1 19990901
DOCDB simple family (application)
US 9204156 W 19920519; AU 2142192 A 19920519; CA 2109728 A 19920519; EP 92912509 A 19920519; JP 50024793 A 19920519; KR 930703590 A 19931124