- 专利标题: Composite oxide black pigment and method for producing same
-
申请号: US14386259申请日: 2013-03-29
-
公开(公告)号: US09732230B2公开(公告)日: 2017-08-15
- 发明人: Akira Nishio , Toru Kawakami , Kenichi Yamane
- 申请人: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
- 当前专利权人: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Hamre, Schumann, Mueller & Larson, P.C.
- 优先权: JP2012-084288 20120402
- 国际申请: PCT/JP2013/059627 WO 20130329
- 国际公布: WO2013/150983 WO 20131010
- 主分类号: C09C1/24
- IPC分类号: C09C1/24 ; C01G49/00 ; C09C1/62
摘要:
A composite oxide black pigment has characteristics to absorb visible rays and near infrared rays, and is composed of an oxide of main constituent metals including copper, manganese and iron. In a wavelength region of 400 to 1,000 nm, the composite oxide black pigment has a minimum wavelength, at which a transmittance becomes minimum, in a wavelength region of 600 to 800 nm, a molar ratio of manganese/iron is 3/1 to 30/1, and a molar ratio of copper/(manganese+iron) is 1/2 to 1.2/2. Its sole use makes it possible to obtain a transparent vivid bluish, neutral gray color, and also to maximize an absorption in a near infrared region. It is, therefore, excellent in near infrared absorption characteristics.
公开/授权文献
信息查询