C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
154/143, 23/192
C04B 30/00 (2006.01) F25D 23/06 (2006.01)
Patent
CA 1242564
PRECIPITATED SILICA INSULATION ABSTRACT OF THE DISCLOSURE Precipitated silica, formed by the interaction of sodium water glass and sulfuric acid, followed by mechanical processing, is employed as an insulating material having a low thermal conductivity. The precipitated silica is dried, compressed, placed in an evacuable pouch, and evacuated. The resulting board-like insulation configuration is used directly as insulation in, for example, household refrigerators.
501397
Barito Robert W.
Downs Kenneth L.
Company General Electric
Eckersley Raymond A.
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