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1. (WO2010115919) METHOD FOR PRODUCING HOLLOW BODIES COMPRISING FREELY MOBILE PARTICLES ENCAPSULATED THEREIN

Pub. No.:    WO/2010/115919    International Application No.:    PCT/EP2010/054580
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Thu Apr 08 01:59:59 CEST 2010
IPC: B01J 13/02
C04B 38/06
G10K 11/165
Applicants: BASF SE
BELLIN, Ingo
COURTOIS, Julien
SANDLER, Jan Kurt Walter
HAHN, Klaus
KIEBURG, Christoffer
WAGNER, Norbert
JOSHI, Ketan
TRAUT, Alexander
KIEBACK, Bernd
STEPHANI, Günther
JEHRING, Ulrike
QUADBECK, Peter
Inventors: BELLIN, Ingo
COURTOIS, Julien
SANDLER, Jan Kurt Walter
HAHN, Klaus
KIEBURG, Christoffer
WAGNER, Norbert
JOSHI, Ketan
TRAUT, Alexander
KIEBACK, Bernd
STEPHANI, Günther
JEHRING, Ulrike
QUADBECK, Peter
Title: METHOD FOR PRODUCING HOLLOW BODIES COMPRISING FREELY MOBILE PARTICLES ENCAPSULATED THEREIN
Abstract:
The invention relates to a method for producing hollow bodies which comprise freely mobile particles encapsulated in the hollow body. According to said method, cores of substantially closed-cell polymer foam particles in which particles are dispersed are coated with a sinterable material and a binder-containing composition. The coated cores are subjected to a heat treatment during which the polymer and the binder are expelled and the sinterable material is sintered to give a closed shell.