Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1979-06-19
1981-09-01
Thibodeau, Paul J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
156 85, 156290, 428152, 428198, 428300, 428458, 428489, 428921, B32B 328, B32B 306
Patent
active
042872480
ABSTRACT:
The flame resistance of a bituminized roof sheet consisting of a reinforced fleece, a metal foil and bitumen is improved substantially by applying a metal foil to one face. A rupture of the metal foil in the case of stress due to elongation is prevented by wrinkling it. The elongation reserve thus obtained is in the range of from 2 to 35%.
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patent: 788358 (1905-04-01), Jacobs
patent: 1551318 (1925-08-01), Logan
patent: 1568314 (1926-01-01), Buttress et al.
patent: 1665222 (1928-04-01), Robinson
patent: 1970746 (1934-08-01), Grayson et al.
patent: 2244352 (1941-06-01), Young et al.
patent: 3137972 (1964-06-01), Ekholm et al.
patent: 3967032 (1976-06-01), Plotz et al.
Die Bauwirtschaft, "Wasserbau," Heft 44, Oct. 29, 1970.
Gessner Wolfgang
Kuhn Helmut
Plotz Kurt
Hoechst Aktiengesellschaft
Thibodeau Paul J.
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