Granulated fire-retardant materials and their applications

Details Granulated fire-retardant materials and their applications Granulated fire-retardant materials and their applications

1978-03-20

1979-10-30

Van Balen, William J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

427212, 427215, B32B 518, B32B 3114

Patent

active

041727444

ABSTRACT:
This invention provides a process of preparing a heat-resistant composite in the form of a solid sphere and comprising a non-combustible porous core material capable of foaming spontaneously when heated at an elevated temperature. The process comprises melting an inorganic material, which is capable of foaming spontaneously when heated at an elevated temperature, in an aqueous alkaline solution or slurry; impregnating a coating of non-combustible porous core material with the melt; and heating the resulting mass to dryness.

REFERENCES:
patent: 2943002 (1960-06-01), Langseth
patent: 3147177 (1964-09-01), Owens et al.
patent: 3208871 (1965-09-01), Langseth et al.
patent: 3365322 (1968-01-01), Hinds
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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