公开(公告)号：US20210276302A1

公开(公告)日：2021-09-09

申请号：US17021719

申请日：2020-09-15

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  HADO FNC CO., LTD. ,  Hyundai Synthetic CO., LTD.

发明人： Seong-Je Kim ,  Seung-Hyun Won ,  Keun-Young Kim ,  Ji-Wan Kim ,  Jung-Wook Lee ,  Tae-Yoon Kim ,  Min-Seok Seo ,  Jong-Eun Ha ,  Young-Su Kim ,  Hyun-Ho Shin ,  Si-Yoon Kim ,  Joung-Jun Cho

IPC分类号： B32B5/06 ,  B32B5/02 ,  B32B5/08

摘要： Disclosed is a method of manufacturing a sound absorbing material for a vehicle, which may include: (a) preparing a mixed fiber including an amount of about 55 to 75 wt % of microfiber polyethylene terephthalate staple fiber having fineness of about 0.3 to 0.7 denier, an amount of about 20 to 40 wt % of low-melt polyethylene terephthalate staple fiber having a fineness of about 1 to 3 denier and a melting point of about 100 to 110° C., and an amount of about 1 to 20 wt % of hollow staple fiber having a fineness of about 13 to 17 denier and a diameter of about 38 to 43 μm, based on the total weight of the mixed fiber. The method may suitably further comprise (b) forming a plurality of webs comprising the mixed fiber; (c) forming a web layer comprising a plurality of webs; and (d) forming non-woven felt comprising the web layer.

公开(公告)号：US20140287644A1

公开(公告)日：2014-09-25

申请号：US14062209

申请日：2013-10-24

申请人： Kia Motors Corporation ,  Hyundai Motor Company

发明人： Jung-Wook Lee

IPC分类号： E04B1/84

CPC分类号： E04B1/84 ,  G10K11/162 ,  Y10T442/649

摘要： Disclosed is a sound-absorbing material for an automobile, using foaming urethane foam to which carbon nano-tubes are applied, and a preparation method thereof. More particularly, disclosed is a sound-absorbing material for an automobile, which has excellent sound absorption and insulation performance while maintaining excellent flame retardancy, by increasing the ratio of open cells while uniformly maintaining the cell structure of the foam by adding carbon nano-tubes as a substitute for a portion of a flame retardant filler, and a preparation method thereof.

摘要翻译： 公开了一种用于汽车的吸音材料及其制备方法，其中使用发泡聚氨酯泡沫，其中应用有碳纳米管。 更具体地，公开了一种汽车用吸音材料，其通过增加开孔的比例，同时保持优异的阻燃性而具有优异的吸声和绝缘性能，同时通过添加碳纳米管均匀地保持泡沫的泡孔结构 作为阻燃填料的一部分的替代物及其制备方法。