Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased
Patent
1985-09-26
1987-04-14
Van Balen, William J.
Stock material or miscellaneous articles
Sheet including cover or casing
Foamed or expanded material encased
523099, 52406, 52588, 156 79, 264 453, 264 465, 264 466, 428157, 4283175, 4283184, 4283197, B32B 300
Patent
active
046577980
ABSTRACT:
A flat composite board or panel for covering the vertical walls of rooms, which consists of a core (3) of synthetic foam produced in situ, an outer layer (2) having a decorative front surface (20) and a rear surface (21) to which the foam adheres, a synthetic layer (4) which adheres to the foam (3) by its front surface (41) and the rear surface (42) of which is covered with a web of fibres, the decorative front surface (20) of the board and its edges (12, 12') being covered with a sealed protective thermoplastic film (1) cooperating with the front surface (41) of the inner layer (4) to which it is secured at its ends (10) so as to form a sheath which limits the expansion of the foam and designed to be removed after the board has been fitted in position.
REFERENCES:
patent: 3298150 (1967-01-01), Ahlquist
patent: 3493449 (1970-02-01), Krug
patent: 4284673 (1981-08-01), Ockels
patent: 4377609 (1983-03-01), Bartoli et al.
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