Soundproof material

Details Soundproof material Soundproof material

1998-02-12

2000-01-11

Copenheaver, Blaine

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

181201, 181202, 360133, 360900, G11B 2303, H02K 524

Patent

active

060133627

ABSTRACT:
A soundproof material comprising a porous member having an air permeation amount based on the pressure difference of 2.039.times.1/10.sup.4 mmH.sub.2 O of from 1.times.1/10.sup.10 to 2.times.1/10.sup.2 cc/cm.sup.2 /second, and having a compressibility.

REFERENCES:
patent: 4181780 (1980-01-01), Brenner et al.
patent: 4252909 (1981-02-01), Honma et al.
patent: 5149048 (1992-09-01), Morehouse et al.
patent: 5207327 (1993-05-01), Brondos
patent: 5377065 (1994-12-01), Morehouse et al.
Encyclopedia of Polymer Science and Engineering, vol. 3, John Wiley & Sons, Inc., New York, p. 566, 1985.

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