Heat-resistant vibration-damping material
专利汇可以提供Heat-resistant vibration-damping material专利检索，专利查询，专利分析的服务。并且PURPOSE: To obtain a vibration damping material durable at high temp. by constituting it with a layer consisting of an ethylene-methyl acrylate copolymer and a layer consisting of a polymethylpentene resin.
CONSTITUTION: A heat-resistance vibration damping material consists of a layer consisting of an ethylene-methyl acrylate copolymer and a layer consisting of a polymethylpentene resin. Absorption of vibrational energy occurs by dissipating the vibrational energy as heat energy and as the internal energy loss increases, the absorption of vibrational energy increases. A phenomenon wherein vibrational energy is converted to heat energy tends to occur in a polar resin with a large dielectric const. and as dynamic tan δ which is a value of tan δwhen several strains per unit time are given increases, absorption ratio of the vibrational energy increases. Polymethylpentene, one of engineering plastics and ethylene-methyl acrylate copolymer, one of elastomers exhibit especially excellent dynamic tan δ. By laminating layers made of these polymers, furthermore excellent value of dynamic tan δ characteristics is obtd. than each individual layer.
COPYRIGHT: (C)1990,JPO&Japio，下面是Heat-resistant vibration-damping material专利的具体信息内容。
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