Fireproof glasswork

Details Fireproof glasswork Fireproof glasswork

1974-03-28

1976-12-14

Ansher, Harold

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428410, 428426, 428427, 428432, 428538, 428913, 428920, 106 15FP, B32B 1706

Patent

active

039977005

ABSTRACT:
The invention relates to a fire screening glazing panel and a method for forming the panel. The panel is composed of at least two structural plies, at least one of which is a vitreous sheet, and a layer therebetween composed at least in part of a heat convertible barrier forming material, which material forms a solid porous or cellular thermally insulating body when subjected to sufficient heat, as during a fire. The barrier forming material is an hydrated metal salt selected from the group consisting of aluminates, plumbates, stannates, alums, borates, and phosphates. The barrier forming material does not significantly reduce the transparency of the structural sheets, if they are transparent, even over extended use during normal conditions.

REFERENCES:
patent: 3006783 (1961-10-01), Haaijman et al.
patent: 3341399 (1967-09-01), Hazdra et al.
patent: 3640837 (1972-02-01), Gaeth et al.
patent: 3793105 (1974-02-01), Birchall et al.

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