Composite noise absorption product

Details Composite noise absorption product Composite noise absorption product

1975-08-04

1976-11-30

Franklin, Lawrence R.

Acoustics

Auditorium

G10K 1102

Patent

active

039943631

ABSTRACT:
A hard board containing a fiber web and a thermoplastic resin which composite is used as a noise absorption product is improved in that the surface and spaces between the fiber web are covered and filled with the resin, and wherein a plurality of finely formed crevices is formed in the resin covering the surface of the composite.

REFERENCES:
patent: 2237032 (1941-04-01), Haux
patent: 3197356 (1965-07-01), Campbell
patent: 3239973 (1966-03-01), Hannes et al.
patent: 3243340 (1966-03-01), Cadotte
patent: 3328086 (1967-06-01), Johnston
patent: 3658633 (1972-04-01), Jumentier et al.

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