Composite spherical polymer particles and their production process, and cosmetics using the same

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专利权人:

发明人:

申请号：

EP09011327.5

公开号：

EP2229931B1

申请日:

2009.09.03

申请国别(地区):

EP

年份:

2016

代理人:

摘要：

Composite spherical polymer particles contain a nanoparticulate pigment having an average primary particle size of from 0.1 to 0.005 µm, a high molecular dispersant having adsorptive property to the nanoparticulate pigment, and a (meth)acrylic resin. The nanoparticulate pigment is enclosed in a dispersed state in the high molecular dispersant and (meth)acrylic resin. The content of the nanoparticulate pigment ranges from 5 to 70 wt% based on the composite spherical polymer particles. The composite spherical polymer particles have an average particle size of from 1 to 20 µm. A production process of the composite spherical polymer particles and cosmetics containing the composite spherical polymer particles are also disclosed.

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