Title:
【発明の名称】磁性ヘキサフェライト粒子の製造方法、得られた粒子及びそれを含む製品
Document Type and Number:
Japanese Patent JPH04503938
Kind Code:
A
Abstract:
The present invention concerns a process for preparing magnetic particles of barium or strontium hexaferrites exhibiting a good dispersibility and improved magnetic properties. The process involves coprecipitating an iron salt with a barium or strontium salt, filtering and neutralizing the resulting coprecipitate, and washing it with a solution of a barium or strontium salt having a concentration in the range of 2x10-3 0.2 M.
Inventors:
Robert Jean-Christophe
Mari, Pierre-Andre
Mari, Pierre-Andre
Application Number:
JP51116989A
Publication Date:
July 16, 1992
Filing Date:
October 17, 1989
Export Citation:
Assignee:
Kodak-Putty
International Classes:
C01G49/00; G11B5/706; H01F1/11; (IPC1-7): C01G49/00; G11B5/706; H01F1/11
Attorney, Agent or Firm:
Aoki Akira (3 outside)