Composite material for vibration damping and structural sound damping
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United States of America Patent
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Jul 17, 1990
Issued Date -
N/A
app pub date -
Mar 6, 1989
filing date -
Feb 13, 1987
priority date (Note) -
Expired
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Abstract
To extend the temperature range of composite materials the composite material is made up of more than two hard layers which are joined with thin intermediate layers of viscoelastic material where one intermediate layer differs from another intermediate layer in that its softening range lies in a different temperature range so that the damping ranges of the intermediate layers also are different.
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