发明授权
- 专利标题: Stabilization of acicular ferromagnetic chromium dioxide
- 专利标题(中): 针状铁磁二氧化铬稳定
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申请号: US481777申请日: 1990-02-20
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公开(公告)号: US5009877A公开(公告)日: 1991-04-23
- 发明人: Werner Steck , Laszlo Marosi , Herbert Haberkorn , Rainer Feser , Werner Huebner , Helmut Jakusch
- 申请人: Werner Steck , Laszlo Marosi , Herbert Haberkorn , Rainer Feser , Werner Huebner , Helmut Jakusch
- 申请人地址: DEX
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX
- 优先权: DEX3536116 19851010
- 主分类号: H01F1/11
- IPC分类号: H01F1/11 ; C01G37/027 ; G11B5/706
摘要:
Acicular ferromagnetic chromium dioxide is stabilized by treatment with an alkali metal hydroxide in an aqueous alkaline suspension at elevated temperatures.
公开/授权文献
- US4470559A Ball tension with improved threading means 公开/授权日:1984-09-11