| 摘要 |
The present invention provides a vibration damper comprising a constrained layer and a resin layer, wherein the constrained layer is constituted of an inorganic material, an organic mass of the resin layer is 1.0 kg/m2 or less, and the resin layer is constituted of a resin composition comprising 100 parts by weight of a chlorine-containing thermoplastic resin having a chlorine content of 20 to 70 wt % and a weight average molecular weight of 400,000 or more, and 200 to 1,000 parts by weight of a chlorinated paraffin having an average carbon atom number of 12 to 50 and a degree of chlorination of 30 to 75 wt %.
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