Sound absorbing material, multilayer sound absorbing...

Details Sound absorbing material, multilayer sound absorbing... Sound absorbing material, multilayer sound absorbing...

G - Physics

10

K

G10K 11/16 (2006.01) G10K 11/162 (2006.01)

Patent

CA 2739408

The object of the present invention is to provide a sound absorbing material having a light weight and excellent sound absorbing performance, and a sound absorbing material consisting of a fiber sheet made of fibers containing at least 50% by mass of a porous fiber having many minute pores, each minute pore opening onto the surface of the porous fiber, and having an airflow resistance in the range of between 0.05 and 3.0 kPa.cndot.s/m. The porous fiber having many minute pores, each one opening onto the surface of the porous fiber, has air-permeability, and so a sound absorbing property in itself, and a sheet made of the porous fiber having air-permeability and sound absorbing property has even further sound absorbing properties created by the spaces between the porous fibers, resulting in the sheet becoming a sound absorbing material with extremely great sound absorbing efficiency.

La présente invention a pour objet un matériau dabsorption acoustique ayant un faible poids et présentant dexcellentes propriétés dabsorption acoustique. Le matériau dabsorption acoustique est une feuille de fibres qui est formée de fibres comprenant au moins 50 % en masse de fibres poreuses ayant un nombre de pores ouverts à la surface et présente une résistance au flux dair de 0,05 à 3,0 kPa s/m. Les fibres poreuses ayant un nombre de pores ouverts à la surface ont des propriétés de perméabilité à lair et dabsorption acoustique. La feuille formée de telles fibres poreuses ayant des propriétés de perméabilité à lair et dabsorption acoustique présente des propriétés dabsorption acoustique grâce à des espaces prévus entre les fibres et peut ainsi être un matériau dabsorption acoustique ayant un très grand effet dabsorption acoustique.

Affiliated with

Also associated with

Rating

Sound absorbing material, multilayer sound absorbing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sound absorbing material, multilayer sound absorbing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound absorbing material, multilayer sound absorbing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1906070