Method of manufacturing a thermally insulating body

Details Method of manufacturing a thermally insulating body Method of manufacturing a thermally insulating body

C - Chemistry, Metallurgy

04

B

261/2

C04B 38/02 (2006.01) C04B 30/00 (2006.01)

Patent

CA 1243048

- 1 - METHOD OF MANUFACTURING A MICROPOROUS THERMALLY INSULATING BODY ABSTRACT OF THE DISCLOSURE A method of manufacturing a microporous thermally insulating body comprises mixing together a finely divided microporous insulating material such as silica aerogel or pyrogenic silica and a solid ammonia- generating compound in particulate form, and compressing the mixture to form a thermally insulating body. The ammonia-generating compound is dispersed evenly throughout the insulating material and may comprise, for example, ammonium carbonate, ammonium acetate or urea. Preferably, the ammonia-generating compound comprises a mixture of about one third by weight of ammonium carbonate and about two thirds by weight of ammonium bicarbonate together with a small proportion of magnesium oxide.

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