Sleeve

Details Sleeve Sleeve

1976-10-19

1980-09-09

Braun, Leslie

Static structures (e.g., buildings)

Irreversibly reactive component

52 1, 523097, 5230916, E04C 320, E04H 900

Patent

active

042210925

ABSTRACT:
A fire barrier comprising an intumescent composition packed into the space between a thermoplastic pipe and an access hole or duct in a wall or floor through which the thermoplastic pipe is laid, said intumescent composition being characterized in that it will expand on heating to temperatures at which the thermoplastic pipe melts or burns, to form a fire resistant mass, said intumescent compound being present in sufficient amounts to completely fill the access hole or duct in its expanded state.

REFERENCES:
patent: 2550560 (1951-04-01), Heron
patent: 3145811 (1964-08-01), Strehan et al.
patent: 3426491 (1969-02-01), Gaeth et al.
patent: 3462890 (1969-08-01), Blimenkranz
patent: 3504615 (1970-04-01), Kurz
patent: 3543460 (1970-12-01), Stastny et al.
patent: 3726050 (1973-04-01), Wise et al.
patent: 3791912 (1974-02-01), Allard
patent: 3904111 (1975-09-01), Petersson
patent: 3995102 (1976-11-01), Kohaut

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