Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1976-05-27
1978-08-15
Van Balen, William J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
428310, 428403, 428404, 428407, 428913, 428921, B32B 326, B32B 518
Patent
active
041073762
ABSTRACT:
The invention provides a heat-resistant composite comprising a noncombustible porous core material (e.g., a calcined mineral such as perlite, etc.) which has been impregnated or coated with an inorganic filler material (e.g., sodium metaborate, sodium meta silicate, sodium metaphosphate, etc.) capable of foaming spontaneously when heated at an elevated temperature. The composite may be incorporated in a molded synthetic resin (e.g., polyurethane) to obtain a flame and heat-resistant molded article in the form of a panel useful as a building material, which, in turn, may be sandwiched between a facing material (e.g., a steel plate, plywood, etc.) and a backing material (e.g., aluminum foil, asbestos paper, etc.) to form a heat-resistant structure which is also useful as a building material. The composite may also be formed by mixing and pelletizing at least one organic filler material with a clay (e.g., kaolin, bentonite, etc.) and incorporating this composite into a synthetic resin panel to obtain a flame and heat-resistant panel also suitable as a building material.
REFERENCES:
patent: 3147177 (1964-09-01), Owens et al.
patent: 3515624 (1970-06-01), Garnero
patent: 3778304 (1973-12-01), Thompson
patent: 3904539 (1975-09-01), Ruff
patent: 3934066 (1976-01-01), Murch
patent: 3974318 (1976-08-01), Lilla
patent: 4024310 (1977-05-01), Wooler et al.
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