发明名称 |
Cobalt-Contaning Black Pigment Particulates |
摘要 |
Disclosed is a black pigment having adequate degree of blackness and high electrical resistance at the same time. Specifically disclosed is a granular black pigment containing cobalt which is characterized in that it is composed of an oxide containing at least cobalt and the divalent cobalt content accounts for 40-70% of the total cobalt content. It is preferable that the total cobalt content in a whole particle is 60-80% by mass, and the divalent cobalt content in a whole particle is 20-50% by mass. It is also preferable that the primary particle diameter is 0.02-0.6 mum.
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申请公布号 |
US2008075653(A1) |
申请公布日期 |
2008.03.27 |
申请号 |
US20050662733 |
申请日期 |
2005.09.16 |
申请人 |
MITSUI MINING & SMELTING CO., LTD. |
发明人 |
HOSHINO TOMOYUKI;KATSUYAMA KOICHI;FUJIYASU SHOICHI;NAKASHIMA TAKASHI |
分类号 |
C01G51/04 |
主分类号 |
C01G51/04 |
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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