MAGNETISABLE 'CORE-SHELL' MICROSPHERES BASED ON RETICULATED ORGANOPOLYSILOXANE, PROCESS FOR PREPARING THEM AND THEIR USE IN BIOLOGY

摘要

P Magnetizable "core-shell" microspheres consisting of a core of magnetizable charges and a cross-linked organopolysiloxane bark. They are obtained by dispersion in an organic solvent of an aqueous suspension of magnetizable fillers not coated with a dispersing agent, dissolution in the organic phase of an organopolysiloxane SiVi and an organohydrogen polysiloxane SiH, crosslinking, elimination of water, separation and possibly redispersion of magnetizable microspheres in water. / P