Title:
黒色顔料及びその製造方法
Document Type and Number:
Japanese Patent JP6592125
Kind Code:
B2
Abstract:
Provided are a black mixed oxide that contains chromium per se of any valency as a main component, and fails to contain cobalt as the main component material, and has a high safety, an excellent color tone and economical efficiency, and a method for producing the same, and various products using the black mixed oxide material. The mixed oxides comprise oxides containing La, Mn and Cu as main components but containing neither Cr nor Co as a main component, wherein the contents of La, Mn and Cu in the mixed oxides satisfy the following ratios, as oxide equivalent amount with respect to 100% by weight of the oxide equivalent amount: the La content as La2O3being 35-70 wt%; the Mn content as MnO2being 25-60 wt%; and the Cu content as CuO being 0.5-10 wt%.
Inventors:
Mikio Nakajima
Takashi Kato
Takashi Kato
Application Number:
JP2018021124A
Publication Date:
October 16, 2019
Filing Date:
February 08, 2018
Export Citation:
Assignee:
Nakajima Sangyo Co., Ltd.
Okuno Pharmaceutical Co., Ltd.
Okuno Pharmaceutical Co., Ltd.
International Classes:
C04B35/01; C09C3/04
Domestic Patent References:
| JP2002038048A | ||||
| JP5131664B2 | ||||
| JP2015098509A |
Other References:
PETROV et.al.,PHASE RELATIONS IN THE La-(Sr)-Mn-Cu-O SYSTEM AND OXYGEN NONSTOICHIOMETRY OF COPPER-SUBSTITUTED LANT,ELECTROCHEMICAL PROCEEDINGS,1997年,Vol.97-18,P.927-936
Attorney, Agent or Firm:
Shirasaka Patent Office