Thermal insulation foamed sheet, thermal insulation foamed container and method for producing the same
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United States of America Patent
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N/A
Issued Date -
Jul 27, 2006
app pub date -
Dec 10, 2002
filing date -
Jul 30, 2002
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a thermal insulation foamed sheet whose foaming height can be kept high by increasing a expansion ratio of foaming cells, thermal insulation foamed container using this and method for producing the same. In the thermal insulation foamed sheet according to the present invention, a foaming plane made of a foaming cell group is formed by heating the sheet in which a synthetic resin film is laminated on base paper and foaming the synthetic resin film using moisture contained in the base paper, and at least a part of the foaming plane is vacuum-suctioned so as to increase the foaming height of the foaming cell. Also, there can be made a thermal insulation foamed container having this foaming plane on at least its body section.
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