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

Composite spherical polymer particles contain a nanoparticulate pigment having an average primary particle size of from 0.1 to 0.005 tm, a high molecular dispersant having adsorptive property to the nanoparticulate pigment, and a (meth) acrylic resin. The nanoparticulate pigment is enclosed in a dis...

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Bibliographische Detailangaben
1. Verfasser:	SHINAGAWA, YUKIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Composite spherical polymer particles contain a nanoparticulate pigment having an average primary particle size of from 0.1 to 0.005 tm, 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 ptm. A production process of the composite spherical polymer particles and cosmetics containing the composite spherical polymer particles are also disclosed.