Title:
INORGANIC PIGMENT
Document Type and Number:
WIPO Patent Application WO/2020/031804
Kind Code:
A1
Abstract:
An inorganic pigment according to the present invention is characterized by being represented by formula (1) below: Ba3W1.5(V1 – xMnx)0.5O8.75 (1) (wherein the relationship 0.01 ≤ x ≤ 0.50 is satisfied). The inorganic pigment according to the present invention preferably has a lamellar crystal structure. The inorganic pigment according to the present invention also preferably has a trigonal unit cell. According to the present invention, it is possible to provide a green-hued inorganic pigment that has low toxicity and superior chromogenicity and thermal stability.
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Inventors:
TODA KENJI (JP)
Application Number:
PCT/JP2019/029997
Publication Date:
February 13, 2020
Filing Date:
July 31, 2019
Export Citation:
Assignee:
UNIV NIIGATA (JP)
International Classes:
C01G45/00; C09C1/02; C09C3/04
Foreign References:
| CN107777727A | 2018-03-09 | |||
| JPS5578063A | 1980-06-12 | |||
| JP2009107919A | 2009-05-21 |
Other References:
LAHA,SOURAV ET AL.: "Stabilization of a Tetrahedral (Mn5+O4) Chromophore in Ternary Barium Oxides as a Strategy toward Development of New Turquoise/Green-Colored Pigments", INORGANIC CHEMISTRY, vol. 55, no. 7, 18 March 2016 (2016-03-18), pages 3508 - 3514
ZHOU, YUNCHENG ET AL.: "Synthesis and properties of novel turquoise-green pigments based on BaAl2-xMnxO4+y", DYES AND PIGMENTS, vol. 155, 23 March 2018 (2018-03-23), pages 212 - 217, XP055686117
MEDINA, ELENA A. ET AL.: "Intense turquoise colors of apatite-type compounds with Mn5+ in tetrahedral coordination", SOLID STATE SCIENCES, vol. 52, 11 December 2015 (2015-12-11), pages 97 - 105, XP029397393, DOI: 10.1016/j.solidstatesciences.2015.12.001
ZHOU, YUNCHENG ET AL.: "Synthesis and properties of novel turquoise-green pigments based on BaAl2-xMnxO4+y", DYES AND PIGMENTS, vol. 155, 23 March 2018 (2018-03-23), pages 212 - 217, XP055686117
MEDINA, ELENA A. ET AL.: "Intense turquoise colors of apatite-type compounds with Mn5+ in tetrahedral coordination", SOLID STATE SCIENCES, vol. 52, 11 December 2015 (2015-12-11), pages 97 - 105, XP029397393, DOI: 10.1016/j.solidstatesciences.2015.12.001
Attorney, Agent or Firm:
ASAHI, Kazuo et al. (JP)
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