Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1990-09-24
1992-06-02
Cashion, Jr., Merrell C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
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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Johnson Roger W.
Sell William D.
Wright Charles D.
Cashion Jr. Merrell C.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Co.
Nakarani D. S.
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