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複合粒子、複合粒子の製造方法、及び外用剤
专利权人:
積水化成品工業株式会社
发明人:
松野 晋弥
申请号:
JP2014068884
公开号:
JP6199222B2
申请日:
2014.03.28
申请国别(地区):
JP
年份:
2017
代理人:
摘要:
PROBLEM TO BE SOLVED: To provide a soft composite particle containing a polymer particle and silica attached to a surface of the polymer particle, having hydrophilic property and excellent in dispersibility in aqueous media, a manufacturing method of the composite particle and an external preparation containing the composite particle.SOLUTION: The composite particle contains a polymer particle and silica attached to a surface of the polymer particle where the polymer particle comprises a polymer of a monomer mixture containing a hydrophilic monofunctional monomer, a monofunctional acrylic acid ester-based monomer having one ethylenic unsaturated group other than the hydrophilic monofunctional monomer, and a polyfunctional acrylic acid ester-based monomer having two or more ethylenic unsaturated groups, the content of silica is 0.2 to 20 wt.% in 100 wt.% of the composite particle, a volume average particle diameter is 5 to 20 &mum, a compression strength during 10% compressive deformation is 0.49 to 5.9 MPa and an amount of water absorption is 40 to 140 ml/100 g.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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