Invention Application
- Patent Title: POWDER OF ß-IRON OXYHYDROXIDE-BASED COMPOUND, ß-IRON OXYHYDROXIDE-BASED COMPOUND SOL, MANUFACTURING METHOD OF POWDER OF e-IRON OXIDE-BASED COMPOUND, AND MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM
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Application No.: US16548307Application Date: 2019-08-22
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Publication No.: US20200071188A1Publication Date: 2020-03-05
- Inventor: Takashi FUJIMOTO
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2018-159195 20180828
- Main IPC: C01G49/06
- IPC: C01G49/06 ; G11B5/852
Abstract:
Provided is a powder of a β-iron oxyhydroxide-based compound that is a group of particles of a ρ3-iron oxyhydroxide-based compound represented by Formula (1) below; in which a surface of the particles of the β-iron oxyhydroxide-based compound is modified with a surface modifier; in which, in a case where the powder is dispersed in water to be made into a sol, a zeta potential of the powder is equal to or higher than +5 mV at pH 10; and β-AaFe1-aOOH (1) in which, in Formula (1), A represents at least one metallic element other than Fe, and a represents a number that satisfies a relationship of 0≤a
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