Paper-backed acoustical tile

Details Paper-backed acoustical tile Paper-backed acoustical tile

1975-06-20

1977-04-05

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

181 33G, 181 33GA, 264 86, 264212, E04B 174

Patent

active

040162346

ABSTRACT:
An acoustical tile comprising a relatively thin, flat body of acoustical composition including fibrous material and a binder, and a paper backing affixed thereto having a fire-retardant material dispersed therein, the outer facing surface of the tile being either planar or slightly convex.

REFERENCES:
patent: 1769519 (1930-07-01), King et al.
patent: 3151700 (1964-10-01), Feid
patent: 3183996 (1965-05-01), Capaul
patent: 3480104 (1969-11-01), Austin et al.
patent: 3770577 (1973-11-01), Humphrey

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