C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
190/41, 31/67
C04B 30/00 (2006.01) F16L 59/02 (2006.01) F17C 13/00 (2006.01) F27D 1/00 (2006.01)
Patent
CA 1088291
ABSTRACT The invention is concerned with an insulating material having low thermal conductivity. This insulating material is of a compacted structure and is formed of silica-based primary particles obtained by heat treatment of a derivative of silane, of which the mean particle diameter is at most equal to 100 .ANG.. The apparent density ? a expressed in g/cc is in the range 6 x 10-3.d to 2.3 x 10-3d, where d is the mean diameter of the primary particles expressed in A. Preferably, the apparent density is equal to about two thirds of the density of the solid material. This insulating material is applicable as a thermal insulator in fields involving low temperatures and high temperatures and in the building sector. -1-
284061
Goumy Daniel
Pelloux-Gervais Pierre
Commissariat A. L'energie Atomique
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
Swabey Ogilvy Renault
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