Composite laminates comprising a metallic substrate and vibration damper
AssigneeMitsui Petrochemical Industries, Ltd.
InventorsMikio Hashimoto, Yoshinari Nakata, Hitoshi Koga
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Abstract
Composite laminates such as metal plate/vibration damper/metal plate, metal plate/vibration damper/metal plate/vibration damper, metal plate/vibration damper/metal plate/vibration damper/metal plate are disclosed. The vibration damper is composed of ethylene-(meth)acrylic acid salt copolymers or its modified products having a specific melting point and a particular heat of fusion. The composite laminate having at least one vibration damper exhibits excellent vibration damping performance, particularly at high temperatures.
Claims9
A composite laminate comprising at least one metallic substrate and at least one vibration damper laminated thereon, said vibration damper being composed of at least one copolymer selected from the group consisting of ethylene-(meth)acrylic acid salt copolymers and modified products thereof, the melting point of said copolymer being in the range of from 60.degree. to 90.degree. C. and the heat of fusion of said copolymer being at least 20 joules per gram as determined by means of a differential scanning calorimeter.
Dependencies are inferred from the claim text.