| abstract |
Composite particles capable of forming a coating excellingnin weatherability and, in particular, stain-proofncharacteristics, a composite particle dispersion compositionncontaining the composite particles and excelling in filmnformability, and a method of preparing the composite particlendispersion composition. The composite particles contain (i)npolymer particles having 2-70 wt% of a polymer phase (a) of thencore and 98-30 wt% of a polymer phase (b) of the shell, and (ii)na polymer of at least either an organosilicon compound ornorganometallic compound present at least either on or near thensurface of the polymer phase (b), wherein the polymer phase (a)nand the polymer phase (b) have different monomer compositions. |