Radio wave absorber composition, radio wave absorber member, radio wave absorber, and method for producing radio wave absorber member
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United States of America Patent
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Aug 3, 1999
Grant Date -
N/A
app pub date -
Jun 22, 1995
filing date -
Jun 23, 1994
priority date (Note) -
Expired
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Abstract
This invention relates to a composition for preparing a nonflammable, light-weight radio wave absorber which has a capacity of absorbing radio waves at low frequency bands of 30 MHz to 1,000 MHz or at high frequency bands of over 1,000 MHz, a radio wave absorber member using the above composition, a radio wave absorber using the radio wave absorber member, and a method for producing the above wave absorber member. The radio wave absorber composition for a low frequency band of 30 MHz to 1,000 MHz mainly consists of cement, light-weight aggregates, non-conductive fibers and synthetic resin emulsion. And, the wave absorber composition for a high frequency band of over 1,000 MHz mainly consists of cement, light-weight aggregates, carbon fibers and/or carbon graphite and synthetic resin emulsion.
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