Soundproof material

Details Soundproof material Soundproof material

1998-06-17

1999-10-26

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing panels

181290, 181294, E04B 182

Patent

active

059710993

ABSTRACT:
A lightweight and inexpensive soundproof material which is reclaimable comprises a thermoplastic resin substrate and a non-woven cloth laminated on a surface of the substrate and made from thermoplastic resin fibers different from the material of the substrate. The assembly of fibers and the substrate are bonded together integrally through a joint interface which is at least partially molten by ultrasonic vibration.

REFERENCES:
patent: 4242398 (1980-12-01), Segawa et al.
patent: 4851283 (1989-07-01), Holtrop et al.
patent: 4966799 (1990-10-01), Lucca et al.
patent: 5258585 (1993-11-01), Juriga
patent: 5298694 (1994-03-01), Thompson et al.

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