Fine spherical polymer particles containing inorganic...

Details Fine spherical polymer particles containing inorganic... Fine spherical polymer particles containing inorganic...

C - Chemistry, Metallurgy

09

D

31/135, 400/5219

C09D 17/00 (2006.01) C08F 2/44 (2006.01) C09B 67/02 (2006.01) C09B 67/20 (2006.01) C09D 11/10 (2006.01)

Patent

CA 1124916

FINE SPHERICAL POLYMER PARTICLES CONTAINING INORGANIC PIGMENT AND/OR COLORING AGENT AND PROCESS FOR THE PREPARATION THEREOF ABSTRACT OF THE DISCLOSURE: A suspension polymerization of polymerizable monomers is conducted in a system containing an inorganic dispersion stabilizer and an inorganic pigment and/or black coloring agent, in which the polymerizable monomers have an opposite charge in water to the inorganic dispersion stabilizer whereby the former is ionically bound with the latter. The suspension polymerization during the middle stage in which polymer particles are apt to stick together is stabilized and the polymer particles are prevented from coalescing 80 that fine spherical polymer particles are obtained with a uniform particle size distribution.

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