发明授权
- 专利标题: Process for preparing stable inorganic pigment
- 专利标题(中): 制备稳定无机颜料的方法
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申请号: US108938申请日: 1979-12-31
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公开(公告)号: US4334933A公开(公告)日: 1982-06-15
- 发明人: Nobuyoshi Abe , Syozo Takatsu , Kiyoshi Kanemaru , Minoru Yokoyama
- 申请人: Nobuyoshi Abe , Syozo Takatsu , Kiyoshi Kanemaru , Minoru Yokoyama
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Toho Ganryo Kogyo Co., Ltd.,Nippon Chemical Industrial Co., Ltd.
- 当前专利权人: Toho Ganryo Kogyo Co., Ltd.,Nippon Chemical Industrial Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX54-61599 19790521
- 主分类号: C09C3/00
- IPC分类号: C09C3/00 ; C09C3/06 ; C09C1/00
摘要:
A process for preparing a stable inorganic pigment coated with a fine amorphous silica which comprises forming a silica sol in an aqueous prepared slurry of an inorganic pigment by reacting an alkali silicate solution with one or more acid gases so that a fine silica sol covers the surfaces of the particles of the inorganic pigment.
公开/授权文献
- USD427674S Front face of a grill for an electric fan 公开/授权日:2000-07-04