Invention Grant
- Patent Title: Sound absorbing and insulating material with superior moldability and appearance and method for manufacturing the same
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Application No.: US15105920Application Date: 2014-04-03
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Publication No.: US09805708B2Publication Date: 2017-10-31
- Inventor: Keun Young Kim
- Applicant: Hyundai Motor Company
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company
- Current Assignee: Hyundai Motor Company
- Current Assignee Address: KR Seoul
- Agency: Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- Agent Peter F. Corless
- Priority: KR10-2013-0159410 20131219
- International Application: PCT/KR2014/002863 WO 20140403
- International Announcement: WO2015/093689 WO 20150625
- Main IPC: E04B2/02
- IPC: E04B2/02 ; G10K11/168 ; B32B5/26 ; B32B7/12 ; B32B5/02 ; B32B38/12 ; D04H1/4374 ; B32B37/06 ; B32B37/10 ; B32B37/12 ; B32B37/14 ; B60R13/08 ; B32B1/00 ; F16L59/02

Abstract:
The present invention relates to a sound absorbing and insulating material with superior moldability and appearance and a method for manufacturing the same, more particularly to a sound absorbing and insulating material consisting of an inner sound absorbing and insulating layer 1 formed of a first nonwoven fabric mainly formed of a heat-resistant fiber and a binder uniformly distributed inside the first nonwoven fabric and maintaining the three-dimensional structure inside the first nonwoven fabric and an outer sound absorbing and insulating layer 2′, 2″ formed of a second nonwoven fabric mainly formed of a heat-resistant fiber, wherein the outer sound absorbing and insulating layer is stacked on one or both sides of the inner sound absorbing and insulating layer, and a method for manufacturing the same. The sound absorbing and insulating material of the present invention has superior sound-absorbing property, flame retardancy, heat resistance, heat-insulating property and high-temperature moldability. In addition, there is no concern of deterioration of surface appearance caused by leakage of the binder due to the presence of the outer sound absorbing and insulating layer.
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