COMPOSITE SPHERICAL POLYMER PARTICLE, METHOD FOR PRODUCING THE SAME AND COSMETIC USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide composite spherical polymer particles containing a nanoparticulate pigment having an average particle diameter of≤0.1μm in a uniformly dispersed state in an acrylic resin, a method for producing the same and a cosmetic using the same.

SOLUTION: The composite spherical polymer particles contain a nanoparticulate pigment having an average primary particle diameter of from 0.1-0.005μm, which is enclosed in a dispersed state in a high molecular dispersant having an adsorptive property to the pigment and an acrylic resin and in which the content of the pigment is 5-70 mass% based on the composite spherical polymer particles and the average particle diameter of the composite spherical polymer particles is 1-20μm.

COPYRIGHT: (C)2010,JPO&INPIT