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Title:
SOUND-ABSORBING MATERIAL HAVING EXCELLENT SOUND ABSORPTION PROPERTIES AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2014/051351
Kind Code:
A1
Abstract:
The present invention relates to a sound-absorbing material having excellent sound absorption properties and to a method for manufacturing same; and, more particularly, to a sound-absorbing material, and to a method for manufacturing same, having excellent sound absorption properties in which a wide surface area and an air layer are formed so as to be capable of causing viscous loss in incident acoustic energy and to improve sound absorption rate and transmission loss. Excellent sound absorption properties can be achieved even with a small fiber amount, thereby enabling lightweight design, and a binder fiber having rebound resilience is used so as to improve the sound absorption properties by maximizing the viscous loss of the acoustic energy transmitted to a fiber structure while maintaining a sufficient binding force between fibers.

Inventors:
KIM HYO SEOK (KR)
KIM DO HYUN (KR)
KIM CHI HUN (KR)
KIM AN NA (KR)
Application Number:
PCT/KR2013/008630
Publication Date:
April 03, 2014
Filing Date:
September 26, 2013
Export Citation:
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Assignee:
WOONGJIN CHEMICAL CO LTD (KR)
International Classes:
B60R13/08; D04H1/4391; D04H1/542
Foreign References:
KR20110034522A2011-04-05
JP4616836B22011-01-19
KR20030000746A2003-01-06
JP2005141238A2005-06-02
Other References:
None
See also references of EP 2902266A4
Attorney, Agent or Firm:
LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
특허법인 리온 (KR)
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