发明申请
US20140138182A1 GLASS FIBER-BASED SOUND ABSORBING SHEET HAVING ADJUSTABLE PERMEABILITY AND AIR POROSITY 有权
基于玻璃纤维的声音吸收片具有可调节的渗透性和空气孔隙度

GLASS FIBER-BASED SOUND ABSORBING SHEET HAVING ADJUSTABLE PERMEABILITY AND AIR POROSITY
摘要:
The present invention relates to a sound absorbing sheet having excellent sound absorbing performance and surface decorative effects. The sound absorbing sheet of the present invention is characterized by comprising a base and having an average sound absorption of 0.4 or higher in a frequency range of 200 to 2000 Hz. The permeability and air porosity of a base layer of the sound absorbing sheet of the present invention may be adjusted, thereby achieving significantly superior effects of sound absorbing performance despite the thinness of the sound absorbing sheet.
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