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Particles of polymer shell encapsulated pigments, process for preparing an aqueous dispersion of said polymer encapsulated pigments, and uses of said encapsulated particles
Particles of polymer shell encapsulated pigments, process for preparing an aqueous dispersion of said polymer encapsulated pigments, and uses of said encapsulated particles
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机译：聚合物壳包封的颜料的颗粒，制备所述聚合物包封的颜料的水分散体的方法以及所述包封的颗粒的用途
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摘要
The invention relates to a method for production of an aqueous dispersion of polymer-encapsulated pigments characterized in that (a) an aqueous pigment dispersion, containing at least one organic pigment (P) at least one surfactant (T), and water is prepared,(b) a monomer miniemulsion stabilized by a hydrophobic organic compound with a water solubility at 20° C. of not more than 5×105 g/l, is prepared from a polymerizable monomer (M) and at least one surfactant (T), in water, (c) a monomer pigment emulsion is prepared, whereby the aqueous pigment dispersion from (a) and the monomer miniemulsion from (b) are mixed and homogenized, and (d) the pigment-containing monomer miniemulsion from (c) is polymerized in the presence of a polymerization initiator and/or by heat, whereupon an encapsulation of the pigment with the polymer thus formed occurs.
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