发明授权
- 专利标题： Automotive trim part for sound insulation and absorption
- 专利标题（中）： 汽车饰件用于隔音和吸收
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申请号： US13043756申请日： 2011-03-09
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公开(公告)号： US08261876B2公开(公告)日： 2012-09-11
- 发明人: Claudio Castagnetti , Claudio Bertolini
- 申请人： Claudio Castagnetti , Claudio Bertolini
- 申请人地址： CH Winterhur
- 专利权人： Autoneum Management AG
- 当前专利权人： Autoneum Management AG
- 当前专利权人地址： CH Winterhur
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 优先权： EP1015903 20100309; EP1015905 20100309
- 主分类号： E04B1/82
- IPC分类号： E04B1/82
摘要：
A sound insulating trim part is provided. The sound insulating trim part includes an absorbing area and an insulating area. The absorbing area includes at least a first portion of a porous fibrous layer. The insulating area includes a mass layer and a decoupling layer. The mass layer includes a second portion of the same porous fibrous layer. The second portion has a dynamic Young's modulus (Pa) of at least about (96·AW·t) with AW being an area weight (g/m2), and t being a thickness (mm) of the porous fibrous layer. The mass layer also includes at least a substantially air impervious barrier layer between the porous fibrous layer and the decoupling layer. The thickness of the first portion of the porous fibrous layer in the absorbing area is larger than the thickness of the second portion of the same porous fibrous layer in the insulating area.
公开/授权文献
- US20110253474A1 Automotive Trim Part for Sound Insulation and Absorption 公开/授权日：2011-10-20
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