Viscous-Fluid-Enclosing Damper and Vibration-Damping Composition
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United States of America Patent
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Issued Date -
Dec 5, 2013
app pub date -
May 28, 2013
filing date -
May 30, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a viscous-fluid-enclosing damper which attenuates, by using viscous resistance of a vibration-damping composition, vibrations transmitted between a support and an object to be supported, the support and object being attached to a closed container enclosing the vibration-damping composition of a viscous fluid. The viscous-fluid-enclosing damper alters few vibration-damping properties even when used under high temperatures and/or conditions where the vibrations are repeatedly generated for a prolonged period. Also provided is the vibration-damping composition which is used for the viscous-fluid-enclosing damper. The viscous fluid contains a viscous liquid having dispersed therein at least one type of heat-resistant resin particles and a dripping inhibitor, the particles being selected from polyethylene and nylon having an average molecular weight of from 50×104 to 600×104 and an average particle size of from 10 μm to 200 μm and preferably from 10 μm to 160 μm.
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