Title:
CONTROLLING METHOD OF RADIO WAVE ABSORBENT IN ABSORPTION PROPERTY
Document Type and Number:
Japanese Patent JPH04361596
Kind Code:
A
Abstract:
PURPOSE: To enable a radio wave absorbent of different radio wave absorption property constant in thickness to be easily formed excellent in reproducibility.
CONSTITUTION: Inorganic oxide whose ' is 4-6 or so is added to radio wave absorbent material composed of synthetic rubber and iron carbonyl and uniformly dispersed, and the absorbent material is controlled in radio wave absorption property by the amount of the added inorganic oxide. The loadings of iron carbonyl to synthetic rubber amount to 70-80% or so by weight. SiO2, CaCO3, Al2O3, or the like is used as the inorganic oxide concerned, and 20% or below by weight of inorganic oxide 5-10μm in grain diameter is added.
Inventors:
KANEKO HISAO
INAGAKI MASAYUKI
ISHIKURA MAKOTO
INAGAKI MASAYUKI
ISHIKURA MAKOTO
Application Number:
JP16393191A
Publication Date:
December 15, 1992
Filing Date:
June 08, 1991
Export Citation:
Assignee:
FUJI ELECTROCHEMICAL CO LTD
International Classes:
H05K9/00; (IPC1-7): H05K9/00
Attorney, Agent or Firm:
Shigemi