Vacuum thermal insulating material and thermally insulating case using the same
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United States of America Patent
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Dec 14, 1999
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N/A
app pub date -
Nov 20, 1998
filing date -
Mar 7, 1995
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Abstract
A vacuum thermal insulating material of the present invention and a thermally insulating case using the vacuum thermal insulating material are used as thermal insulation in, for example, refrigerators and freezers. The vacuum thermal insulating material has a core material including two or more different powders and an adsorbent. The vacuum thermal insulating material of the present invention has excellent performance of thermal insulation and is light in weight and manufactured at a low cost. The thermally insulating case of the present invention enables the performance of thermal insulation to be practically maintained over a long time period.
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