Low porosity facings for acoustic applications

Details Low porosity facings for acoustic applications Low porosity facings for acoustic applications

2008-07-24

2010-10-26

Torres-Velazquez, Norca L (Department: 1786)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including an additional nonwoven fabric

C442S387000, C442S388000, C442S393000, C442S400000, C442S409000, C442S417000, C264S113000, C428S218000, C428S219000

Reexamination Certificate

active

07820573

ABSTRACT:
A fibrous blanket material is provided having a first fibrous layer selected from a group of fibers consisting of polyester, polypropylene, polyethylene, fiberglass, natural fibers, nylon, rayon and blends thereof and a layer of meltblown polypropylene fibers. In an alternative embodiment the blanket may also include a second fibrous layer made of the same material as the first layer where the layer of meltblown polypropylene fibers is sandwiched between the two fibrous layers.

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