Low density non-woven material useful with acoustic ceiling...

Details Low density non-woven material useful with acoustic ceiling... Low density non-woven material useful with acoustic ceiling...

2009-06-18

2011-11-22

Theisen, Mary F (Department: 1743)

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

C264S087000, C264S122000, C162S152000

Reexamination Certificate

active

08062565

ABSTRACT:
A non-woven material, that can be formed into an acoustic ceiling tile, is provided. The material includes a substantially planar and self-supporting core of an inorganic base fiber and a synthetic thermal bonding fiber. The synthetic thermal bonding fiber preferably has an increased bonding surface area that improves adhesion and porosity to provide a base mat or core with a low density to provide sound absorption required by an acoustic ceiling tile.

REFERENCES:
patent: 7294218 (2007-11-01), Haque et al.
patent: 7862687 (2011-01-01), Englert et al.
patent: 2003/0060113 (2003-03-01), Christie et al.
patent: 2009/0252941 (2009-10-01), Mueller et al.
patent: 2009/0253323 (2009-10-01), Mueller et al.

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