VISCOELASTIC COMPOSITION AND DAMPER, AND RELATED METHODS
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United States of America Patent
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Issued Date -
Jun 11, 2009
app pub date -
Feb 8, 2008
filing date -
Dec 5, 2007
priority date (Note) -
Abandoned
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Abstract
A viscoelastic composition, a panel constrained layer damper containing a viscoelastic layer and a constraining layer, and a damped structure all provided. The viscoelastic composition features an elastomeric polymeric component containing an ethylene vinyl acetate having a vinyl acetate content constituting about 60 weight percent or more of the ethylene vinyl acetate, a thermoplastic polymeric component such as an ethylene vinyl acetate with a vinyl acetate content constituting about 40 weight percent or less of the ethylene vinyl acetate, asphalt, filler, and a blowing agent.
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