Vibration damper having extended temperature range and low tempe

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Details

428461, 428463, 428483, 428520, 428522, B32B 516

Patent

active

051185628

ABSTRACT:
Constrained layer damping structures are often based on viscoelastic layers of iso-octyl acrylate:acrylic acid or analogous copolymers. As the acrylic acid content is increased, the peak damping temperature also increases; unfortunately, however, the copolymer becomes more brittle and susceptible to shock, especially at low temperatures. Incorporating small amounts of rubbery polymer particles (especially core-shell polymers) in the viscoelastic copolymer alleviates this problem.

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