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公开(公告)号：US06265475B1
公开(公告)日：2001-07-24
申请号：US09363749
申请日：1999-07-30
IPC分类号： C08K553
摘要： A high damping material composition useful as a vibration damper and an acoustic insulating material such as a sound insulating wall for an acoustic room, a sound insulating partition for a construction structure and a soundproofing wall for a vehicle. The high damping material composition of the present invention containing the following components (A) and (B); (A) a polymer having in the molecular chain thereof a chemical structural unit derived from the following (a); (a) at least one selected from the group consisting of an acrylic monomer, a methacrylic monomer, an ethylene-acrylic copolymer, an ethylene-methacrylic copolymer and vinyl acetate; (B) at least one damping property imparting agent selected from the group consisting of a hindered phenol compound, a phosphite ester compound, a phosphate ester compound, a basic compound containing nitrogen and a hindered amine compound. The combined use of the component (A) and (B) makes an interaction therebetween homogeneous and appropriate, so that the component (B) is homogeneously dispersed in the component (A), resulting in exhibition of a high tan &dgr;. Moreover, the homogeneous dispersion can be maintained for a long period thereby to prevent a declined of tan &dgr; with time. The compositions have a tan &dgr; peak temperature of approximately room temperature, which makes the compositions suitable for use in a room temperature atmosphere.
摘要翻译： 可用作振动阻尼器的高阻尼材料组合物和用于声学室的隔音壁，隔音隔板和用于车辆的隔音墙的隔声材料。 含有下列组分（A）和（B）的本发明的高阻尼材料组合物;（A）在其分子链中具有衍生自以下（a）的化学结构单元的聚合物;（a）至少一种 选自丙烯酸单体，甲基丙烯酸单体，乙烯 - 丙烯酸共聚物，乙烯 - 甲基丙烯酸共聚物和乙酸乙烯酯;（B）至少一种阻尼赋予剂，其选自受阻酚化合物， 亚磷酸酯化合物，磷酸酯化合物，含氮的碱性化合物和受阻胺化合物。 组分（A）和组分（B）的组合使得它们之间的相互作用是均匀和适当的，使得组分（B）均匀地分散在组分（A）中，导致显示高的tanδ。 此外，均匀分散体可以保持长时间，从而防止随着时间的减少tanδ。 组合物具有大约室温的tanδ峰值温度，这使得组合物适合在室温气氛中使用。
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