Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1978-04-12
1979-10-02
Van Balen, William J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
521122, 521903, 428212, 428313, 428425, 428921, B32B 326
Patent
active
041699157
ABSTRACT:
A heat resistant foamed material is disclosed, comprising a cellular foamed resin having associated therewith talc in sufficient quantity to provide enhanced fire resistance to the foam. In various embodiments the talc may be incorporated throughout the foam, concentrated at or near the surface of the foam, incorporated in a facing for the foam which facing comprises a mat (preferably of glass fiber) impregnated with talc, or incorporated into a coating, such as asphalt, with which the facing for the foam is impregnated. The heat resistant faced or unfaced foams incorporating talc are useful as thermal insulations for buildings, particularly for building roofs.
REFERENCES:
patent: 3096196 (1963-07-01), Bettoli et al.
patent: 3174887 (1965-03-01), Voelker
patent: 3451842 (1969-06-01), Kurz et al.
patent: 3565746 (1971-02-01), Stevens
patent: 3625872 (1971-12-01), Ashida
patent: 3802950 (1974-04-01), Stevens
patent: 3962154 (1976-06-01), Egli
Heitmann Glenn A.
Trosper, Jr. Milton F.
Johns-Manville Corporation
Kelly Joseph J.
Krone Robert M.
McClain James W.
Van Balen William J.
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