Foamed insulating materials and method of manufacture

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

C - Chemistry, Metallurgy

04

B

261/2

C04B 43/02 (1980.01)

Patent

CA 1071241

FOAMED INSULATING MATERIALS AND METHOD OF MANUFACTURE Abstract of the Disclosure A method for producing high temperature insulating material in the form of a foam is disclosed. A mixture of components in the following proportions is mixed with water and foamed, the percentages of the components being by weight of the components of the total composition excluding water: Glass fibre 0.5 to 20% Expanded perlite 40% to 94.5% Bentonite 5% to 40%. The foamed mixture is shaped and then dried at a temperature which is lower than 90°C. but in excess of the temperature at which the bentonite lattice hydroxyl water is lost. The temperature is below the temperature at which a ceramic product is formed and preferably is in the temperature range of 650°C. to 850°C.

272546

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