Electromagnetic interference shielding material

Details Electromagnetic interference shielding material Electromagnetic interference shielding material

1983-08-12

1984-10-02

Demers, Arthur P.

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6253, 174 35R, C04B 3504, H01F 100, H01F 126

Patent

active

044746768

ABSTRACT:
The present invention relates to an electromagnetic interference shielding material used for shielding radios and the like from electromagnetic waves emitted from a computer or the like. In the prior art, a zinc flame-sprayed shielding material is applied on the housing of a computer or the like to shield it from electromagnetic waves.
The present invention provides an electromagnetic interference shielding material having an improved durability and shield effectiveness (SE) and comprising a ferromagnetic amorphous alloy having a conductivity of 10.sup.2 .OMEGA..sup.-1 .multidot.cm.sup.-1 or more and a permeability of 100 or more at 1 kHz.

REFERENCES:
patent: 2283925 (1942-05-01), Harvey
patent: 3668176 (1972-06-01), Childress
patent: 3800158 (1974-03-01), Grosbard
patent: 4308155 (1981-12-01), Tada
patent: 4331285 (1982-05-01), Gottwals
patent: 4431979 (1984-02-01), Stijntjes et al.
Chem. Abstracts; vol. 95; Mitsubishi Abstract No. 63439.

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