| 摘要 |
PROBLEM TO BE SOLVED: To provide high heat insulation multilayer glass capable of highly insulating heat and being made lightweight. SOLUTION: Vitreous porous granular particles 3 comprising porous spherical particles synthesized using reverse micelle process and having uniform particle diameter are filled in an insulation layer 4 between 2 sheets of plate glass 2, the outer periphery of 2 sheets of plate glass 2 is sealed with a sealing member 5 and the inside of the heat insulation layer 4 is evacuated to reduce the pressure, for example, to about 10<SP>-1</SP>Pa. The particle diameter of the porous spherical particle is preferably 3-20μm from the view point of flowability. The pressure applied on the outside surface of the plate glass 2 is dispersed through the flowable granular particles 3 and supported by the granular particles 3. COPYRIGHT: (C)2006,JPO&NCIPI
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