Polyurethane-base material suitable for use for making fire arre

Details Polyurethane-base material suitable for use for making fire arre Polyurethane-base material suitable for use for making fire arre

1980-11-13

1983-01-25

Briggs, Sr., Wilbert J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524792, 524871, 524874, 528 77, 528 78, C08G 1832, C08L 7512

Patent

active

043704450

ABSTRACT:
The invention concerns a material having good resistance to mechanical stresses and heat and in particular having substantial resistance to the penetration of a directed flame such as the pointed flame of a blowpipe.
The material comprises a substance which can be polymerized such as a polyurethane, sulfur, and possibly halogenated compounds, phosphorus-bearing compounds, phosphohalogenated compounds, trivalent antimony oxide, solid or liquid fillers and pigments.
The material may be used for the production of strong walls, in particular by filling internal cavities of armoured doors, walls of strong rooms or safes.

REFERENCES:
patent: 3876568 (1975-04-01), Wysocki
patent: 4251428 (1981-02-01), Recker et al.
Chemical Abstracts, vol. 94, 1981, p. 48, Abstract No. 122589k, Yamada, Taku, "Encapsulating Compositions for Fire Proofing Polyurethane Foams".

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