Electromagnetic wave absorbing compositions
AssigneeShin-Etsu Chemical Co., Ltd.
InventorIkuo Sakurai
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Abstract
An electromagnetic wave-absorbing composition is obtained by dispersing in a base polymer a magnetic powder coated with electrically insulating inorganic fines and optionally, a heat conductive powder. The composition has a high breakdown voltage, and can be applied to any adequate site within electronic equipment without a need to pay substantial attention to short-circuits.
Claims14
An electromagnetic wave-absorbing composition comprising a curable organopolysiloxane as a base polymer and a magnetic powder coated with electrically insulating inorganic submicron fines in an RF thermal plasma method, dispersed therein,
- said composition having an Asker C hardness of up to 80 when cured.
An electromagnetic wave-absorbing composition comprising a curable organopolysiloxane as a base polymer, and a magnetic powder coated with electrically insulating inorganic submicron fines in an RF thermal plasma method and a heat conductive powder, both dispersed therein, said composition having an Asker C hardness of up to 80 when cured.
A sheet obtained by molding and heat curing an electromagnetic wave-absorbing composition comprising a curable organopolysiloxane as a base polymer and a magnetic powder coated with electrically insulating inorganic submicron fines in an RF thermal plasma method, dispersed therein, said composition having an Asker C hardness of up to 80 when cured.
A sheet obtained by molding and heat curing an electromagnetic wave-absorbing composition comprising a curable organopolysiloxane as a base polymer, and a magnetic powder coated with electrically insulating inorganic submicron fines in an RF thermal plasma method and a heat conductive powder, both dispersed therein, said composition havening an Asker C hardness of up to 80 when cured.
Dependencies are inferred from the claim text.