撥水性微粒子シリカ被覆酸化亜鉛粉体およびその製造方法並びにそれを含有する化粧料
- 专利权人:
- 大東化成工業株式会社
- 发明人:
- 野田 久稔,田中 巧
- 申请号：
- JP2007191690
- 公开号：
- JP5290544B2
- 申请日:
- 2007.07.24
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a water-repellent fine particle silica-covered zinc oxide powder carrying out silica-covering treatment without almost causing aggregation, having a water-repelling property and suppressing the surface activity and suppressing elution of zinc.
SOLUTION: The water-repellent fine particle silica-covered zinc oxide powder is obtained by dispersing zinc oxide powder into a solution of an acrylic silicone resin represented by general formula (1) (wherein X is an integer of &ge1 R1 and R2 are each a hydrogen atom, a methyl group, an ethyl group, an acetic acid group or an acetate group R3 is a straight-chain alkyl group, a branched alkyl group or a hydroxylalkyl group l, m and n are each a molar ratio), adding a volatile alkali substance thereto, adding one or more kinds of compounds represented by general formula (2): Si(OR4)
4 (wherein R4 is &ge1C saturated hydrocarbon group) thereto and then hydrolyzing an alkoxysilane.COPYRIGHT: (C)2009,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
