Asphalt impregnated felt building materials

Details Asphalt impregnated felt building materials Asphalt impregnated felt building materials

1975-10-07

1978-03-14

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

427442, 428144, 428280, 428281, 428291, 428489, 428491, 428920, 428921, E04D 100

Patent

active

040791580

ABSTRACT:
The disclosure describes asphalt saturated felt building materials, optionally having a mineral filled asphalt base coating thereon, in which the asphalt saturating the felt and/or the asphalt in any mineral filled coating is a blend of 10-55% sulfur dispersed in the asphalt. The materials are used in the conventional manner as roofing felt, roofing shingles, and in built-up roofing, to obtain improved fire resistance.

REFERENCES:
patent: 95576 (1869-10-01), Field et al.
patent: 256368 (1882-04-01), Poschel
patent: 1026855 (1912-05-01), Ellis
patent: 1264932 (1918-05-01), Henderson
patent: 1765778 (1930-06-01), Schutte
patent: 1846186 (1932-02-01), Cline et al.
patent: 2804833 (1957-09-01), Berry et al.
patent: 3738853 (1973-06-01), Hopvillem
patent: 3810857 (1974-05-01), Garrigues et al.

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