| 发明名称 | Composite oxide black pigment and method for producing same | ||
| 摘要 | To provide a Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue than a Cu—Mn—Fe-based complex inorganic oxide black pigment obtained by a conventional wet method. A Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue is disclosed. The complex inorganic oxide black pigment has a spinel structure composed of oxides of copper, manganese and iron as main constituent metals, the molar ratio of copper/manganese/iron is in a range of 3 to 8/5 to 10/1, at least one divalent metal element other than the main constituent metals has been introduced, and the molar ratio of (copper+the divalent metal element)/(manganese+iron) is in a range of 1 to 1.6/2. A production process of the black pigment is also disclosed. | ||
| 申请公布号 | US8968460(B2) | 申请公布日期 | 2015.03.03 |
| 申请号 | US201214357109 | 申请日期 | 2012.12.18 |
| 申请人 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 发明人 | Yamane Kenichi;Kawakami Toru;Nishio Akira;Terada Hiroyoshi |
| 分类号 | C09C1/24;C08K3/10 | 主分类号 | C09C1/24 |
| 代理机构 | Hamre, Schumann, Mueller & Larson, P.C. | 代理人 | Hamre, Schumann, Mueller & Larson, P.C. |
| 主权项 | 1. A Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue, wherein the complex inorganic oxide black pigment has a spinel structure comprising oxides of copper, manganese and iron as main constituent metals, a molar ratio of copper/manganese/iron is in a range of 3 to 8/5 to 10/1, at least one divalent metal element other than the main constituent metals has been introduced, and a molar ratio of (copper+the divalent metal element)/(manganese+iron) is in a range of 1 to 1.6/2. | ||
| 地址 | Tokyo JP | ||