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Patent Searching and Data


Title:
COSMETIC OBTAINED BY USING MICROCAPSULATED PIGMENT
Document Type and Number:
Japanese Patent JP2004043342
Kind Code:
A
Abstract:

To provide a cosmetic which has brought out essential functions of pigment by finely dispersing the pigment particle stably.

This cosmetic comprises the pigment and an organic solvent, where the pigment is provided with enhanced steric repulsion toward each other and a charge generated on the surface thereof and is prevented from sedimentation by coating at least a part of the outer surface of the pigment covered with an acrylic silicone graft polymer, with a polymer compound self-dispersible in an aprotic organic solvent having an electric resistance of at least 109 Ω cm, and therefore the pigment can stably maintain dispersion stability and electrostatic charging properties. Thus, the cosmetic not suffering from sedimentation after a long-term service and exhibiting excellent color development can be provided.


Inventors:
TAKAO NAGAYUKI
NISHIMURA MIYUKI
Application Number:
JP2002201645A
Publication Date:
February 12, 2004
Filing Date:
July 10, 2002
Export Citation:
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Assignee:
HITACHI MAXELL
International Classes:
A61K8/18; A61K8/00; A61K8/89; A61K8/91; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61Q1/12; (IPC1-7): A61K7/02; A61K7/021; A61K7/027
Attorney, Agent or Firm:
Yasuaki Sugiura