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    • 1. 发明授权
    • Vibration-damping material with excellent workability
    • 振动阻尼材料具有优异的加工性能
    • US4788099A
    • 1988-11-29
    • US94021
    • 1987-09-03
    • Nobuo FukushimaShuji KitamuraKiyohiko NakaeYoshiaki TogawaKozo KotaniToshitsugu KikuchiSeiichi Shibata
    • Nobuo FukushimaShuji KitamuraKiyohiko NakaeYoshiaki TogawaKozo KotaniToshitsugu KikuchiSeiichi Shibata
    • B32B15/08B32B27/32G03G5/082G10K11/168B32B7/02
    • G03G5/082B32B15/08B32B27/322G10K11/168Y10T428/24942Y10T428/24967Y10T428/26Y10T428/31692Y10T428/31699Y10T428/31837Y10T428/31917Y10T428/3192Y10T428/31924
    • A vibration-damping material with excellent workability consisting of two metal plates and a vibration-damping layer of a thermoplastic resin interposed between the two metal plates, in which the vibration-damping layer of a thermoplastic resin consists of a film as a middle layer and a polyolefin type resin (B) provided on both sides of the film as an upper and lower layer, the film as the middle layer being composed of (1) at least one resin (A) selected from the group consisting of polyolefin type resins and ionomer resins each having a modulus of elasticity in shear at 20.degree. C. of 3.times.10.sup.9 to 1.times.10.sup.7 dyne/cm.sup.2, a percentage of elongation at 20.degree. C. of 50% or above and a peak temperature of dissipation factor (tan .delta.) of -120.degree. C. to 80.degree. C. or (2) a resin mixture of the resin (A) and a synthetic rubber having a percentage of elongation at 20.degree. C. of 100% or above and a peak temperature of dissipation factor (tan .delta.) of -120.degree. to 50.degree. C., and the polyolefin type resin (B) having a modulus of elasticity in shear at 20.degree. C. larger than that of the resin (A), a percentage of elongation at 20.degree. C. of 10% or above, a peak temperature of dissipation factor (tan .delta.) of -40.degree. to 180.degree. C. and a bonding strength toward the metal plates at 20.degree. C. and 180.degree. -peeling of 3 kg/cm or above.
    • 一种具有优异的可加工性的减振材料,由两块金属板和一块热塑性树脂构成的隔热层之间夹在两块金属板之间的隔热层组成,其中热塑性树脂的减震层由一层作为中间层的薄膜和 设置在作为上下层的膜的两面上的聚烯烃类树脂(B),作为中间层的膜由(1)至少一种选自聚烯烃类树脂和 各自具有在20℃剪切下的弹性模量为3×10 9至1×10 7达因/ cm 2的离聚物树脂,20℃下的伸长百分比为50%或更高,并且散热因子(tanδ)的峰值温度为 120℃〜80℃或(2)树脂(A)和20℃下的伸长率为100%以上的合成橡胶的树脂混合物和峰值温度(tanδ delta)为-120〜50℃,聚烯烃类树脂 (B)在20℃下的剪切弹性模量大于树脂(A)的弹性模量,20℃下的伸长率为10%以上,耗散因子峰值温度(tanδ) -40℃至180℃,并且在20℃下对金属板的粘结强度和3kg / cm 3以上的180°剥离。