Sound absorbing member

Details Sound absorbing member Sound absorbing member

1994-09-26

1996-09-10

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing panels

181286, 428219, 428224, 428284, 428287, E04B 184

Patent

active

055548318

ABSTRACT:
A sound absorbing member having excellent sound insulating and absorbing performances comprises a fiber assembly consisting essentially of short fibers and having a thickness of not less than 5 mm, in which new and/or recycled polyester fibers are used as the short fiber and not less than 30% by weight of the polyester fiber used have a fiber-size of not more than 4 denier.

REFERENCES:
patent: 4420526 (1983-12-01), Schilling et al.
patent: 5064714 (1991-11-01), Yamaguchi et al.
patent: 5258585 (1993-11-01), Juriga
patent: 5286929 (1994-02-01), Kazawa et al.
"Determination of Carboxyl End Groups in a Polyester, Polyethylene Terephthalate", Herbert POHL, vol. 26, No. 10, Oct. 1954, pp. 1614-1616.

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