Foamed insulating materials and method of manufacture

Details Foamed insulating materials and method of manufacture Foamed insulating materials and method of manufacture

1978-12-20

1981-02-03

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

106 40R, 264 453, 264 60, C04B 3314

Patent

active

042488109

ABSTRACT:
A method of producing high temperature insulating foam is described. A gellable foam of glass fibre, expanded perlite and bentonite in water is shaped dried and fired at a temperature below the temperature at which a ceramic product is formed but in excess of the temperature at which the bentonite lattice hydroxyl water is lost.

REFERENCES:
patent: 3203813 (1965-08-01), Gajardo
patent: 3287476 (1966-11-01), Snyder
patent: 3341339 (1967-09-01), Stein
patent: 3418403 (1968-12-01), Garnero
patent: 3689611 (1972-09-01), Hardy

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