| 摘要 |
<p>A damping material composition having good damping performance in a wide temperature range, comprising 100 parts by weight of a block copolymer composed of, for example, 72 wt.% of isobutylene and 28 wt.% of styrene and having a number-average molecular weight of 88,000, 15 parts by weight of tackifier polybutene, and 50 parts by weight of graphite flakes as a filler.</p> |
