发明名称 |
Ultra-fine spherical particles of metal oxide and a method for the preparation thereof |
摘要 |
Ultra-fine spherical particles of a metal oxide having an average particle diameter of 40 nm or smaller can be prepared by a method in which a vaporizable metal compound is vaporized and decomposed under heating to give ultra-fine particles of a metal oxide followed by immediate cooling down to a temperature at which coalescence of the fine particles are prevented from coalescence. The fine particles have characteristics such as an excellent power of ultraviolet scattering.
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申请公布号 |
US4842832(A) |
申请公布日期 |
1989.06.27 |
申请号 |
US19880172970 |
申请日期 |
1988.03.21 |
申请人 |
IDEMITSU KOSAN COMPANY LIMITED |
发明人 |
INOUE, HAKUAI;KOMIYAMA, HIROSHI |
分类号 |
C01B13/18;C01B13/20;C01G1/02;C01G23/07;C01G25/02 |
主分类号 |
C01B13/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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